帮我做19道专升本英语选择题 要求正确率

闷蛋的闷蛋2022-10-04 11:39:541条回答

帮我做19道专升本英语选择题 要求正确率
1.Hello,Mary,we haven't seen each other for years.What _________ now?"-- "I ______ at university.
A.do you do,have studied B.are you doing,study C.are you doing,am studying D.are you going to do,am studying
2.When I entered the room,she ______for her watch.
A.searched B.was searching C.has searched D.was searched
3.The boy recognized clearly where his duty_________ .
A.lies B.lay C.lays D.laid
4._________ the wind?It ______ very strongly.
A.Are you nearing; is mowing B.Do you hear,is blowing C.Have you heard,has blown D.do you hear,is blown
5.These books _____ by the time the author comes back from abroad.
A.have been published B.will be published C.will have published D.will have been published
6.“What’s your job?" -- "I ________ for a newspaper."
A.have worked B.work C.worked D.had worked
7.Where is Bob?He ________ on the playground ten minutes ago.
A.was playing B.played C.had played D.has played
8.Mark Twain,an American writer,________ everybody here.
A.knows B.is known as C.is known to D.is known for
9.Mary was caught in a traffic jam and by the time she arrived at the airport her father's plane ____________ .
A.took off B.had already taken off C.was taken off D.had already been taken off
10.They______ the Summer Palace three times.
A.have gone to B.have been to C.have been in D.have gone into
11.By the end of last year he _____ over one thousand letters of congratulation from different parts of the world.
A.received B.has received C.had received D.would receive
12.We a monthly test two hours ago
A.had already had B.have C.had D.are having
13.When _______ this story?
A.were you written B.have you written C.did you write D.had you written
14.From the 1910s to the 1950s Hollywood ________ the film centre of the world.
A.has been B.was C.was being D.had been
15.Smith ________his friends for money.
A.is often asking B.often ask C.often asks D.has been asked
16.The river ____to the east.It is the second longest river in the country.
A.runs B.is running C.run D.ran
17.What __________ next?
A.is to do B.is to be done C.will do D.is being done
18.While he _______ the poster,a door somewhere behind him opened.
A.is staring at B.did stare at C.was stared at D.was staring at
19.This film _______ this Sunday.
A.is going to show B.is showing C.is to be shown D.will have been shown

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定语从句(Attributive Clauses)在句中做定语,修饰一个名词或代词,被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后,由关系词(关系代词或关系副词)引出。
关系代词有:who, whom, whose, that, which等。
关系副词有:when, where, why等。
18.1 关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词,并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。
1)who, whom, that
这些词代替的先行词是人的名词或代词,在从句中所起作用如下:
Is he the man who/that wants to see you?
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He is the man whom/ that I saw yesterday.
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2) Whose 用来指人或物,(只用作定语, 若指物,它还可以同of which互换), 例如:
They rushed over to help the man whose car had broken down. 那人车坏了,大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。
3)which, that
它们所代替的先行词是事物的名词或代词,在从句中可作主语、宾语等,例如:
A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。(which / that在句中作宾语)
The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)
18.2 关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词,在从句中作状语。
1)when, where, why
关系副词when, where, why的含义相当于"介词+ which"结构,因此常常和"介词+ which"结构交替使用,例如:
There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。
Beijing is the place where (in which) I was born. 北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗?
2)that代替关系副词
that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句,在口语中that常被省略,例如:
His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。
18.3 判断关系代词与关系副词
方法一: 用关系代词,还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语,就必须要求用关系代词;而不及物动词则要求用关系副词。例如:
This is the mountain village where I stayed last year.
I'll never forget the days when I worked together with you.
判断改错(注:先显示题,再显示答案,横线;用不同的颜色表示 出。)
(错) This is the mountain village where I visited last year.
(错) I will never forget the days when I spent in the countryside.
(对) This is the mountain village (which) I visited last year.
(对) I'll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二: 准确判断先行词在定语从句中的成分(主、谓、宾、定、状),也能正确选择出关系代词/关系副词。
例1. Is this museum ___ you visited a few days age?
A. where B. that C. on which D. the one
例2. Is this the museum ____ the exhibition was held.
A. where B. that C. on which D. the one
答案:例1 D,例2 A
例1变为肯定句: This museum is ___ you visited a few days ago.
例2变为肯定句: This is the museum ___ the exhibition was held.
在句1中,所缺部分为宾语,而where, that, on which都不能起到宾语的作用,只有the one既做了主句的表语,又可做从句的宾语,可以省略关系代词,所以应选D。
而句2中, 主、谓、宾俱全,从句部分为句子的状语表地点,既可用副词where,又因 in the museum词组,可用介词in + which 引导地点状语。而此题中,介词on 用的不对,所以选A。
关系词的选择依据在从句中所做的成分,先行词在从句中做主、定、宾语时,选择关系代词 (who, whom, that, which, whose); 先行词在从句中做状语时,应选择关系副词 ( where 地点状语,when 时间状语,why 原因状语) 。
18.4 限制性和非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分,去掉它主句意思往往不明确;非限制性定语从句是先行词的附加说明,去掉了也不会影响主句的意思,它与主句之间通常用逗号分开,例如:
This is the house which we bought last month. 这是我们上个月买的那幢房子。(限制性)
The house, which we bought last month, is very nice.这幢房子很漂亮,是我们上个月买的。(非限制性)
2) 当先行词是专有名词或物主代词和指示代词所修饰时,其后的定语从句通常是非限制性的,例如:
Charles Smith, who was my former teacher, retired last year. 查理•史密斯去年退休了,他曾经是我的老师。
My house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。
This novel, which I have read three times, is very touching. 这本小说很动人,我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数,例如:
He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思,这使我心烦。
Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽,这就叫做蒸发。
说明:关系代词that和关系副词why不能引导非限制性定语从句。
18.5 介词+关系词 P>
1)介词后面的关系词不能省略。
2)that前不能有介词。
3) 某些在从句中充当时间,地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?
18.6 as, which 非限定性定语从句
由as, which 引导的非限定性定语从句,as和which可代整个主句,相当于and this或and that。As一般放在句首,which在句中。
As we know, smoking is harmful to one's health.
The sun heats the earth, which is very important to us.
典型例题
1)Alice received an invitation from her boss, ___came as a surprise.
A. it B. that C. which D. he
答案C. 此为非限定性从句,不能用 that修饰,而用which.,it 和he 都使后句成为句子,两个独立的句子不能单以逗号连接。况且选he句意不通。
2)The weather turned out to be very good, ___ was more than we could expect.
A. what B. which C. that D. it
答案B。which可代替句子,用于非限定性定语从句,而what不可。That 不能用于非限定性定语从句,it不为连词,使由逗号连接的两个句子并在一起在英语语法上行不通。
3)It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
答案B.
as 和which在引导非限制性定语从句时,这两个关系代词都指主句所表达的整个意思,且在定语从句中都可以作主语和宾语。但不同之处主要有两点:
(1) as 引导的定语从句可置于句首,而which不可。
(2) as 代表前面的整个主句并在从句中作主语时,从句中的谓语必须是系动词;若为行为动词,则从句中的关系代词只能用which.。
在本题中,prevent由于是行为动词,所以正确选项应为B。
As 的用法
例1. the same… as;such…as 中的as 是一种固定结构, 和……一样……。
I have got into the same trouble as he (has).
例2. as可引导非限制性从句,常带有'正如'。
As we know, smoking is harmful to one's health.
As is know, smoking is harmful to one's health.
As是关系代词。例1中的as作know的宾语;例2中,它充当从句的主语,谓语动词know要用被动式。
18.7 先行词和关系词二合一
1)Whoever spits in public will be punished here.
(Whoever 可以用 anyone who 代替)
2)The parents will use what they have to send their son to technical school.
(what 可以用all that代替)

18.8 what/whatever;that/what; who/whoever
1)what = the thing which;whatever = anything
What you want has been sent here.
Whatever you want makes no difference to me.
2) who= the person that whoever= anyone who
(错)Who breaks the law will be punished.
(错)Whoever robbed the bank is not clear.
(对)Whoever breaks the law will be punished.
(对)Who robbed the bank is not clear.
3) that 和 what
当that引导定语从句时 ,通常用作关系代词,而引导名词性从句时,是个不充当任何成分的连接词。宾语从句和表语从句中的that常可省略。What只能引导名词性从 句, 用作连接代词,作从句的具体成分,且不能省略。
I think (that) you will like the stamps.
What we need is more practice.
18.9 关系代词that 的用法
1)不用that的情况
a) 在引导非限定性定语从句时。
(错) The tree, that is four hundred years old, is very famous here.
b) 介词后不能用。
We depend on the land from which we get our food.
We depend on the land that/which we get our food from.
2) 只能用that作为定语从句的关系代词的情况
a) 在there be 句型中,只用that,不用which。
b) 在不定代词,如:anything, nothing, the one, all, much, few, any, little等作先行词时,只用that,不用which。
c) 先行词有the only, the very修饰时,只用that。
d) 先行词为序数词、数词、形容词最高级时,只用that。.
e) 先行词既有人,又有物时。
举例:
All that is needed is a supply of oil.
所需的只是供油问题。
Finally, the thief handed everything that he had stolen to the police.
那贼最终把偷的全部东西交给了警察。
我想今年专升本,只考英语和高数,但英语基本靠蒙,还有不到半年时间!英语能行吗?
我想今年专升本,只考英语和高数,但英语基本靠蒙,还有不到半年时间!英语能行吗?
高数还马马虎虎…
sam135523771年前1
redspray 共回答了20个问题 | 采纳率75%
用两个月的时间背完牛津高阶,至少词根要都有个印象.
再用两个月的时间背语法,必须要常用语法和重点特殊语法都熟练掌握.
用半个月时间看英文杂志,英文原著,还有英文电影,别只看中文字幕,听英文发音和英文字幕,看不懂的马上暂停.(英文杂志和英文原著要中英对照的)
在用一个半月时间题海练习,可以吧单选题不用手做,用眼睛瞟.阅读题,做完之后拿出来念一遍,
在这期间,尽量用英文说话,培养语感.
我有一个阅读理解的题这道题是2004年河南专升本英语试卷的阅读理解passage4 46题:the orgin of l
我有一个阅读理解的题
这道题是2004年河南专升本英语试卷的阅读理解passage4 46题:the orgin of languageis _______
A:taeasure handed down from the past B :a matter that is hidden or secret
C:a problem not yet solved D:a question diffcult to answer
文章的原文出处:how men first learned to invent words is unknown;in other words ,the origin of language is a mystery.
ichliberdich1年前1
新大灰狼 共回答了22个问题 | 采纳率100%
正确答案:B 原文的意思是:男性如何第一次了解到发明单词是未知;换句话说,语言的起源是一个神秘吗
题目结合起B答案来,意思是:母亲节的起源与语言是一种物质,是隐藏或秘密.很吻合
第二次求救英语作业,秋季《大学英语(二)》专升本第二次在线作业
第二次求救英语作业,秋季《大学英语(二)》专升本第二次在线作业
一、单选题(共 22 道试题,共 66 分。)
1. To (admire)means:
A. to laugh at
B. to think highly of
C. to forget
2. Small quantities of poison were (detected)in the dead man’s stomach.
A. discovered
B. put
C. observed
D. seen
3. She misinterpreted the (implications)of his letter and thus misunderstood his intentions.
A. sense
B. symbol
C. meaning
D. significance
4. My coworkers came up to me and asked, “What will your (reaction)be if the boss wants you to work the day shift from now on?” My coworkers wanted to know
A. how I would answer the boss.
B. what my pay would be.
C. what my work hours would be.
5. To (realize)is to:
A. hope
B. know
C. write
6. Although I never buy anything over the phone, there is one telephone salesperson who ______ in calling me at least once a week.
A. persists
B. creates
C. resists
7. If friends tell you that you are (stubborn), they mean that you
A. are a good friend.
B. find it hard to change or give in.
C. change your mind all the time.
8. The opposite of (grasp)is:
A. let go
B. smile
C. shake
9. If you (recognize)several classmates from fifth grade, that means that you
A. like them.
B. remember them from your school days.
C. forget who they are.
10. The opposite of (necessary)is:
A. not needed
B. not honest
C. not strong
11. There used to be only one long-distance telephone company, but now companies like MCI, Sprint, and AT&T all ______ to get people’s business.
A. disgust
B. contain
C. compete
12. The Indian film nominated in Oscar (compresses)half a century into less than two hours.
A. presses
B. harnesses
C. condenses
D. sucks
13. The opposite of (increase)is:
A. get smaller
B. sit down
C. forget
14. The opposite of (solution)is:
A. thought
B. problem
C. warning
15. People who have bad heart problems are often ______ in a special unit of a hospital. There they can receive the extra care they need.
A. imagined
B. isolated
C. refused
16. It makes me angry when my kids leave ______ towels lying on the bathroom floor.
A. comfortable
B. damp
C. popular
17. The two men were not only (rivals)for the same job but also for the same girl.
A. enemies
B. fighters
C. contestants
D. competitors
18. If you did something that you now(regret), you feel
A. sorry about what happened.
B. bored with what happened.
C. good about what happened.
19. Because I have no car, I have to ______ on a neighbor for a ride to work.
A. prevent
B. inspect
C. depend
20. The doctor assured him that his blindness was (temporary)and he would regain his eyesight in two weeks.
A. contemporary
B. shortened
C. pause
D. provisional
21. The opposite of (hopeless)is:
A. feeling sad
B. looking forward to something
C. wanting to be honest
22. Something that is (permanent)is:
A. good
B. new
C. long-lasting
三、判断题1. It is more (economical) to buy a six-pack of sodas for $1.99 than to buy six single sodas at 50 cents each.
2. Judging from the way Tina and Frank keep smiling and winking at one another, there seems to be a good deal of (spite) between them.
3. Every group of friends seems to have one especially (timid) member who bosses the others around.
4. I painted a line from the left edge of the wall all the way over to the right edge, and then I covered that (vertical) line with a colorful border design.
5. Most department stores have a few computer games for sale, but you have to go to a computer store for a really (vast) selection of games.
6. I (resent) what my brother did—after I told him what I was going to buy for our mother’s birthday, he rushed out and bought it first, so I had to come up with a new idea.
风光正美好1年前1
帅不gg的小齐 共回答了16个问题 | 采纳率87.5%
1--5 BACAB
6--10 ABABA
11--15 ACABB
16--20 BDACD
21=22 BC
判断题
T
F
T
F
T
F
《大学语文》哪些课文需要背诵?我想专升本,买了一本《大学语文》,是大纲要求考的60篇课文.除了有些现代文不用背诵外,其他
《大学语文》哪些课文需要背诵?
我想专升本,买了一本《大学语文》,是大纲要求考的60篇课文.除了有些现代文不用背诵外,其他的古诗词都要背诵吗?请有经验的高手或者老师帮我.
我已经背了大部分的古诗词,有些太长的实在是太难了,同学说理解熟悉了就好了.
giniewolf1年前1
yy之瞳 共回答了20个问题 | 采纳率95%
好像没什么要背的课文吧
要背课文的考试 肯定是有填空之类的题目
而我买的模拟卷 里面的考试内容有
1.选择
2.多选
3.词语解释
4.给你文章中的一段话 针对这段话提出几个问题让你回答
5.作文
这些考试的题目主要是要根据大纲理解课文 了解课文中的时代背景 中心思想 修辞方法和论证方法
如果是再担心就去365买个《大学语文》教程 对考试应该有很大的帮助
2012河南专升本英语每一题的分值多少?估分用
2012河南专升本英语每一题的分值多少?估分用
我就记得1-40选择题一题一分.作文20分、后面的完形,阅读理解,翻译,改错呢?
wangchong6101年前1
tingweidn 共回答了26个问题 | 采纳率92.3%
(一单选)40(、二完形填空)20*1=20(三阅读理解)20*2=40(翻译)10*2=20(改错)!*10=10(作文)20..
成考专升本试题:If I know more English,I___ for this position.
成考专升本试题:If I know more English,I___ for this position.
A would apply B will apply C may have applied Dwill have applied
pyh76101年前1
li空空 共回答了20个问题 | 采纳率85%
A
虚拟语气
误差理论与测量平差因为读了专升本,但是工作从事的完全和这个没关系,今天看了即将要抽考的试卷,完全看不懂啊,特此向您请求帮
误差理论与测量平差

因为读了专升本,但是工作从事的完全和这个没关系,今天看了即将要抽考的试卷,完全看不懂啊,特此向您请求帮助- -谢谢了,一直不怎么用这个,也只有8个财富值.o(︶︿︶)o 唉


HANCWX1年前1
落212片叶子 共回答了16个问题 | 采纳率81.3%
1、两者中误差相等,但是平均值不同,平均值大的距离,其相对误差小.
由于距离测量的结果包含误差,求得的中误差不是由真值参与计算求得,而是由平均值代替真值求得.此中误差和真误差的不同的,不能说真误差相等.
古文翻译是按照什么打分的?考的是专升本的语文
古文翻译是按照什么打分的?考的是专升本的语文
1古文翻译一定要按照书上的一样?2是按照什么打分的?
3意思对行不行 如始指异之 的异 翻译为以为···不同寻常 和 认为···奇特 是一样吗?
apple76571年前1
CIRCLE616 共回答了16个问题 | 采纳率93.8%
1、按照扣分点。比如:夫祸患常积于忽微,而智勇多困于所溺。
得分点可能就在介词结构后置,忽微(形容词作名词),所字结构
这一句就是三分,达到一点算一分,不是得分点的地方翻错也没有关系。
2、是一样的。
这里的异是意动用法,只要表现出意动用法的特征就行了
定积分求解旋转体体积,成人专升本数学,y=√x ,x=1,x=4,及x轴所为平面绕y轴旋转.
依天啸1年前0
共回答了个问题 | 采纳率
英语专升本的题1.Having been delayed by heavy snow,_____.A.the arriv
英语专升本的题
1.Having been delayed by heavy snow,_____.
A.the arrived late B.it is impossible for them to arrive on time.C.it led to them being late D.their friends thought that they would be late.
2.To succeed in a difficlut task,______.
A.one needs to be persistent B.persistence is need C.you need be a persistent persons D.persistence is what one needs
1.2这种题我看见就蒙了.
3.I had a hard time __getting up __ this moring.
4.The hotel we lived didn't have enough room ___to live ___ in.
3.4 题 have 都有have 为啥后面接法不一样 求have用法详解
5.I wish I could have longer this moring,but I had to get up and come to class.
5.题could为啥不能换成might 不是虚拟吗
6."I'm sorry _____that.But I really did not mean it."Tom said in apology.
A.to say B.that I have to say C.to have said D.that I should say
6.题答案是C,B为啥不行
7.very much to enjoy错
too much to enjoy 对
8._________,I couldn't enter the room.
A.To lose my key B.My key has lost C.My key to be lost D.My key having been lost
8.题B D 区别
9.When the streets are full of melting snow.you can't help _____your shoes wet.
A.get B.to get C.but get D.rot getting
10.It would be surprising for ______any objections to the proposal.
A.not to be B.it not to be C.there not to be D.there not be not
9.10 不懂
3.I had a hard time getting up this moring.
4.The hotel we lived didn't have enough room to live in.
我一片冰心在玉壶1年前1
6521817 共回答了17个问题 | 采纳率64.7%
D
A这两题都是一种类型,前面是非谓语动词做伴随状语,主语要用人;第一题只有D选项的主语是人第二题虽然C选项主语也是人,但是后面的a persistent persons,单复数错误这个是固定短语,have difficult time (in) doing sth.其中in可以省略to live in是做room的宾补,to live in一则是表将来,就是要去住的;二则是因为live是不及物动词,后面要用in,实际是to live in the room这里的意思是不对的,might的语气前后句不一致B不符合句意,你翻译一下就知道了very much通常放在句尾,后面不能接不定式B是主动形式,D是被动形式,钥匙自己不能发出丢的动作,所以要用被动语态A, can't help but do意思是 情不自禁做.A,not to be 没有
西方经济学的问题,后天专升本,急用!求详解! 某消费者效用函数为u(x,y)=xy,消费者最初收入为100,如果商品X的
西方经济学的问题,后天专升本,急用!求详解! 某消费者效用函数为u(x,y)=xy,消费者最初收入为100,如果商品X的初始价格Px=2,现变为P'L=1,计算价格变动对商品X的希克斯替代效应和收入效应.
davidmarshal1年前1
优雅惠子 共回答了17个问题 | 采纳率94.1%
消费者的预算线方程 100=2x+Py*Y
边际替代率方程为 y/x=Px/Py=2/Py
解得
希克斯替代效应是 边际替代率方程不变 但是要改变预算线方程 此时为100=1*x+Py*Y
两个计算一下 得到的x 的变化值就是希克斯替代效应
收入效应 就是预算线方程 和边际替代率方程都改变
100=1*x+Py*Y
y/x=Px/Py=1/Py 此时求出来的结果与希克斯求出来的结果相比较得到的x变化值就是收入效应.
专升本语文阅读题短文 专升本英语阅读题短文 专科英语阅读题短文 内容 A B C D :单项选择
闷娃_cc1年前1
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什么问题呀,没听懂.
听力句子速记怎么练我正在复习专升本的材料,目前有一些听力上的困扰,在听段落型的听写题时,不知道怎么能快速而清楚的记下每句
听力句子速记怎么练
我正在复习专升本的材料,目前有一些听力上的困扰,在听段落型的听写题时,不知道怎么能快速而清楚的记下每句话的内容,每次听这种题时,总是记下一句错过后面几句,这让我很发疯~希望各位如有什么好方法,可一定要帮帮我啊!
whtses1年前1
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英语听力速记方法1、不要大量记录文字(汉字、单词),而要使用符号来表示意思(缩写、图形)
2、不要横着写,而要竖着写,有利于保持活意思意思以及数量等信息之间的逻辑界限.
3、逻辑关系要清楚明了 不要记流水帐
下列各句中,加点的成语使用不恰当的一句是( )(3分) A.在地方“专升本”的诸多利益诉求与冲动下,一些老牌高
下列各句中,加点的成语使用不恰当的一句是( )(3分)
a.在地方“专升本”的诸多利益诉求与冲动下,一些老牌高等专科学校 改头换面 加入综合性大学的群体,成为一批“四不像”大学。
b.全球资本市场已有好转迹象,世界经济不像半年前那样陷于 如履薄冰 的危险境地,但是,今年的预期增幅不会较去年大幅上升。
c.近日,提高语文作文母语学科重要地位的有关高考***的言论,在母语教学被忽视的当下,真可谓 空谷足音。
d.美国“监控门”事件触发的新***不断升级,越来越多的***开始抨击美国,其中不乏铁杆盟友,令美国 左支右绌 ,理屈词穷。
hcj1761年前1
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B

专升本题:判断交错级数的敛散性:(条件收敛还是绝对收敛)∑[n=1到∞](-1)^n(√(n+1)-√n)
szjeffly1年前1
汤汤1113 共回答了20个问题 | 采纳率95%
不是绝对收敛,因为绝对值相加是√(n+1)-1,n取无穷是发散的
由莱布尼茨判别法,应该是条件收敛,因为√(n+1)-√n=1/(√(n+1)+√n)
高职高专英语要过几级?那要是专升本呢?
1202171421年前1
sunshineQ 共回答了19个问题 | 采纳率84.2%
没要求.
古代汉语(1) 专升本汉语言文学,2012秋第一次在线作业多选题,小妹拜谢!
峪枫1年前1
温暖的hh 共回答了16个问题 | 采纳率87.5%
题那
关于离散数学复合关系.搞不明白复合关系那个定义.自学考试专升本
关于离散数学复合关系.搞不明白复合关系那个定义.自学考试专升本
设A={a,b,c},B={x,y,z},C={1,2,3},R1是从集合A到集合B的关系,R2是从集合B到集合C的关系,有
R1={,,,}
R2={,}
则R1OR2={
,,}
请各位高手详细解释一下R1,R1和R1OR2怎么得出来的.R1和R2用笛卡尔积应该有9个才对啊,因为刚学离散数学,不是很懂.
吉林北山1年前1
gaozhuoya 共回答了20个问题 | 采纳率95%
集合A到B的关系是笛卡尔积A×B的子集,元素个数是0到9皆可。
两个关系的复合简单来说,就是把两个关系中的有序对“串”起来,举例来说,R1中的元素,a→y。在R2中以y为第一元素的有序对有,y→1,“串”起来,a→y→1,所以在复合关系中。
对于R1中的,b→z,在R2中没有z为第一要素的有序对,“串”不起来。
其它的同样讨论。
帮忙做一下专升本的英语阅读题We spend our leisure hours efficiently for hig
帮忙做一下专升本的英语阅读题
We spend our leisure hours efficiently for higher production,live by the clock even when time does not matter,modernize our homes and speed the machinery of living in order that we can go to the most places and do the most things in the shortest period of time possible.We try to eat,sleep,and talk efficiently.Even on holidays and Sundays,the efficient man relaxes on timetable with one eye on the clock and the other on an appointment sheet.
To squeeze(挤出) the most out of each shining hour we have shortened the area,quickened the pace of the movie and put culture in pocked-sized packages.We make the busy bee look like a lazy creature,the ant like a sluggard.We live sixty-miles-a-minute and the great efficiency smiles.
We wish we could return to the pleasant day when we considered time a friend instead of an enemy; when we did things willingly and because we wanted to,rather than because our timetable called for it.But that of course would not be efficiency; and we Americans must be efficient.
1.The phrase that best expresses the main idea of this passage is ________.
A .“the modern pace”
B .“our interest in shortened operas”
C .“planning our time scientifically”
D .“how to make the best use of leisure time”
2.The passage tells that ________.
A .Americans are forced to be efficient against their will
B.Americans should do what they are willing to do
C .People ought not to work so hard for efficiency
D .Americans are at a loss what to do
3.According to the passage,which of the following is a necessity?
A .shortened opera performance.
B .Quickened paces of movies.
C .Speeded-up work efficiency.
D .Working on holiday.
4.The “pleasant day” to which the author refers was the period when we _______.
A .didn’t feel guilty about wasting time
B.were able to act of our own free will
C .seemed to have better weather.
D .Didn’t have so many enemies
5.The word “sluggard”means _________.
A .a slow-moving person
B .a human being
C .a hard worker
D .an enemy
清河岸边1年前1
杯子在睡觉 共回答了13个问题 | 采纳率84.6%
给你译文,这样好理解,自己再做一下吧
我们花费我们的闲暇时间有效地增加产量,活的时钟即使时间并不重要,我们的家庭和现代化的机械的生活速度以便我们可以到大多数地方,做最的事情在最短的时间内可能的.我们试着吃的、睡的、有效的交谈.即使在假期和星期天,高效的人在一个有一只眼睛放松时间表的时钟和其他在预约单.
挤出最闪亮的每小时我们已经缩短了区域,加快了步伐,把文化的电影在荷包大小的包.我们让忙碌的蜜蜂看起来像一个懒惰的生物,蚂蚁像一个游手好闲的人.我们住六十英里一分钟和伟大的效率的微笑.
  我们希望我们可以回到快乐的一天当我们认为时间一个朋友而不是敌人;当我们做过的事情,因为我们想要心甘情愿,而不是因为我们的时间表呼吁它.但这当然不会效率;我们美国人必须是有效的
高数积分的一些题目2013年福建专升本的数学题,不知道为什么我在网上找不到这年题目的答案17. 设f(x)=∫0到x c
高数积分的一些题目
2013年福建专升本的数学题,不知道为什么我在网上找不到这年题目的答案
17. 设f(x)=∫0到x cos(t^2)dt ,则f'(√π)=___。 这个我算的答案是-2,但是给我的答案是-1
18. ∫-1到1 (5sin^2013 x - 2tanx + 3)dx=? 完全没思路 ,答案是6
求这两道题目的解题过程或思路,谢谢了
chris_q1年前1
鱼000000 共回答了18个问题 | 采纳率83.3%
17、
【分析】
定积分求导: f(x)=∫(x 0)cost²dt f'(x) = cosx²
【解答】
f'(√π)=cosπ = -1
18、
【分析】
对称区间(-a,a)积分时,先看被积函数是否为奇偶函数。
奇函数在对称区间积分,结果为0,偶函数在对称区间积分,其值为2倍的(0,a)区间积分值。
【解答】
在对称区间(-1,1)上,5sin^2013 x - 2tanx 为奇函数,积分结果为 0,所以
∫(-1,1)(5sin^2013 x - 2tanx + 3)dx = ∫(-1,1) 3dx = 3x |(-1,1) = 6
newmanhero 2015年3月5日16:44:10
希望对你有所帮助,望采纳。
帮我做几道 "定积分" 我是专升本的同学,高数自己复习的蛋疼啊,下面的几道题目一直想不出来.
星星aa1年前1
leo_ong 共回答了22个问题 | 采纳率90.9%
1、左边=∫ [0-->a] f(x)dx
=∫ [0-->a/2] f(x)dx +∫ [a/2-->a] f(x)dx
后一个做换元,x=a-t,dx=-dt,x:[a/2-->a],则 t:[a/2-->0]
上式化为
=∫ [0-->a/2] f(x)dx -∫ [a/2-->0] f(a-t)dt 将t换回x,交换上下限
=∫ [0-->a/2] f(x)dx +∫ [0-->a/2] f(a-x)dx
=右边
2、换元,令√(e^x-1)=t,则x=ln(t^2+1),dx=2t/(t^2+1)dt,x:ln2-->2ln2,t:1-->√3
左边=∫[1-->√3] (1/t)*2t/(t^2+1)dt=2∫[1-->√3] 1/(t^2+1)dt=2arctant [1-->√3]
=2(π/3-π/4)=π/6
3、1/[x^2(x+1)]=A/x+B/x^2+C/(x+1),通分比较系数后得
A=-1,B=1,C=1
原式=∫ 1/[x^2(x+1)]dx=∫ (-1/x+1/x^2+1/(1+x))dx
=-lnx-1/x+ln(1+x)=ln(1+1/x)-1/x [1-->+∞)
=1-ln2
专升本要考有机无机化学合卷,由于我高中学文科.所以想买高中的有机无机化学来学,请知道的高手们,具体是高中化学必修几或选修
专升本要考有机无机化学合卷,由于我高中学文科.所以想买高中的有机无机化学来学,请知道的高手们,具体是高中化学必修几或选修几?
cjsh_881年前1
w晶晶姑娘 共回答了14个问题 | 采纳率92.9%
我只知道人教版的.无机的话买必修1和2、选修4,有机的话买选修5.希望对你有所帮助.
专升本公共课计算机文化基础的练习题:
专升本公共课计算机文化基础的练习题:
1.在演示文稿中,一旦某张幻灯片应用模板后,其余幻灯片将会应用相同的模板?(判断题)
2.在PwerPoint中,要改变一个幻灯片母版,则()
A.所有幻灯片采用新模板 B.至当前幻灯片采用新模板
C.可选择新模板幻灯片的数量 D.除空白幻灯片外
一剑@飘血1年前1
成都翔宇 共回答了26个问题 | 采纳率92.3%
1、正确
2、A
希望能帮到你
limx→-∞ 1/[x(x+√ (x^2-4))] = 200年浙江专升本填空第二题
gqb56131年前1
ShellyFU 共回答了21个问题 | 采纳率100%
你好!
分子分母同时乘以x-√ (x^2-4),那么分母变成x(x+√ (x^2-4)*(x-√ (x^2-4))=x(x^2-(x^2-4))=4x
分子是x-√ (x^2-4)
此时原式=(x-√ (x^2-4)/4x=1/4(1-√ (x^2-4)/x)
=1/4{1+√ [(x^2-4)/x^2]}
=1/4[1+√ (1-4/x^2)]
所以当x趋于负无穷大时,-4/x^2=0
所以原式=1/4(1+1)=1/2
了解英语教育的大神请进~要英语专升本但我不知选什么方向好
了解英语教育的大神请进~要英语专升本但我不知选什么方向好
me性格偏内向,不适合口译.现有“英语教育”、商务英语、英语翻译、财经英语、法律英语、空乘英语、“旅游英语”几个选项,请问我是读哪一个比较好呢?还有,我喜欢文学,不喜欢商业化的东西.哪一个发展前景比较好?
城中别书1年前1
该隐的tt 共回答了22个问题 | 采纳率86.4%
me性格偏内向 做英语翻译 挺好的 你只要爱学英语的话 就肯定发展不错~
英语专升本作业题一、单选题V 1.The two men were not only (rivals)for the s
英语专升本作业题
一、单选题V 1.The two men were not only (rivals)for the same job but also for the same girl.A.enemies B.fighters C.contestants D.competitors
2.As the leader of the department of foreign markets development,my major work is to make extensive (contact)with firms abroad.
A.contract B.communication C.construction D.content
3.Bad weather can cause a great deal of ______ to a crop of oranges.
A.damage B.opportunity C.excuse
4.If children (perform)their jobs around the house,they A.complain about doing the work.B.do the work they should.C.don’t do the work they should.
5.To keep up with the news,I read the ______ newspaper.But my husband sticks to Time magazine,which comes out only once a week.A.daily B.humble C.negative
6.Are you ______ that you are wearing one black shoe and one brown shoe?
A.modern B.aware C.capable
7.The opposite of (hopeless)is:
A.feeling sad B.looking forward to something C.wanting to be honest
8.The farmer will be angry if you do not (fasten)all the gates.
A.repair B.quicken C.tie D.lock
9.If a day at work (exhausts)you,it
A.makes you feel very tired.B.gives you energy.C.disappoints you.
10.The opposite of (increase)is:A.get smaller B.sit down C.forget
11.(Humor)is:A.a lesson B.anger C.something funny
12.Someone who has a (sample)of a new kind of ice cream A.has a taste of the ice cream.B.dislikes the ice cream.C.has a big box of the ice cream.
13.If the phone (interrupts)you while you are studying,it A.rings once and then is quiet.B.is quiet and lets you works.C.stops you from doing your work for a while.
14.Something that is (permanent)is:A.good B.new C.long-lasting
15.If you (recognize)several classmates from fifth grade,that means that you
A.like them.B.remember them from your school days.C.forget who they are.
16.To (recognize)is to:A.know from before B.study C.lose
17.When you are (relieved),you are:A.unhappy B.not caring C.less worried
18.The opposite of (grief)is:A.joy B.money C.sadness
19.A (portion)is:A.all of something B.nothing C.a part of something
20.Even though divorce would (dissolve)the classic family,if the family structure hurts everyone,taking it apart would leave all the members happier.
A.break up B.finish with C.end up D.come over
21.The opposite of (decrease)is:A.smile B.get larger C.run fast
22.Someone who is (stubborn):A.is easy to get along with B.does not want to do something C.is quick to learn
喜欢抱你的感觉1年前1
dewcookie 共回答了14个问题 | 采纳率78.6%
.1.D 2.B 3.A. 4.A 5.A 6.B 7.B 8.D 9.A 10.A 11.C 12.A 13.C 14. C. 15.B 16. A 17.C. 18.A. 19.C 20.A 21.B 22.B
专升本的市场调查与预测的一道计算题,要是解答完整的话,
专升本的市场调查与预测的一道计算题,要是解答完整的话,
某企业对所在地区500家商店的某商品销售情况进行调查,现采用简单随机重复抽样法抽取其中250户作为样本,调查结果显示,有25%的商店某商品的销售较为理想,现要求在把握程度为95.45%的基础上,推断出该地区某商品销售较好商店的置信区间.
qwe1191年前1
no1jwj 共回答了17个问题 | 采纳率100%
您好,我统计专业的毕业生,这个是统计学基础里总体成数的推断类题,解决方法如下:
1.样本成数:p=25%
2.成数方差=p*(1-p)=25%*75%=18.75%
3.抽样平均误差=(抽样成数方差/250)^(1/2)=(0.1875/250)^(1/2)*100%=2.74%
4.由给定置信度0.9545,查概率表可得概率度为t=2,
那么极限误差=t*抽样平均误差=2*2.74%=5.48%,则抽样总体的上下限,即置信区间为:
上限:p+极限误差=25%+5.48%=30.48%
下限:p-极限误差=25%-5.48%=19.42%
好了,置信区间就是:(19.42%,30.48%)
呵呵,很久没解决这个问题了,打字比较慢,手都整软了,希望帮助到楼主哈
专升本科目每年3学公布,4月考试,来得及准备吗?
lightingstone1年前10
当时明月照彩云 共回答了21个问题 | 采纳率4.8%
来得及
本人专升本能力有限,多指教了!1.The event ____________ at the time last yea
本人专升本能力有限,多指教了!
1.The event ____________ at the time last year.
A.happensB.happenedC.is happenedD.was happened2."I'm sorry to have kept you waiting." "Oh,not at all.I ____________here only a few minutes."
A.have beenB.had beenC.wasD.will3.If you study hard,you____________the examination.
A.has passedB.are passingC.have passedD.will pass4.He ____________the Communist Party____________2002.
A.has joined,inB.has joined,sinceC.joined,onD.joined,in5.Today's weather isn't as cold as it was yesterday,____________
A.was itB.wasn't itC.is itD.isn't it6.It was____________ the instruments were handled.A.with great careB.greatly careC.with great care thatD.carefully7.They are considering ____________ before the prices go up.
A.of buying the houseB.with buying the houseC.buying the houseD.to buy the house8.Helen had to shout____________above the sound of the music.
A.making herself hearB.to make herself hearC.making herself heardD.to make herself heard9.In such dry weather,the flowers will have to be watered if they____________.
A.have survivedB.are to surviveC.would survivedD.will survive10.It ____________ whether he will go on with his study at the university.
A.hasn't been decidedB.isn't decidedC.hasn't decidedD.doesn't decide11.____________ in this light,the matter is not as serious as people generally suppose.
A.To seeB.SeenC.SeeingD.Being seen12.If you____________quiet,I'll tell you what happened.
A.beB.are to beC.areD.will be13.____________ in simple English,the book is easy to understand.
A.WritingB.WrittenC.To writeD.Being written14.It's a fine day.Let's go fishing,____________
A.won't weB.will weC.don't weD.shall we15.I can't find my dictionary.I wonder whether Mary____________it now.
A.haveB.hasC.is havingD.had16.There____________more than 300,000 kinds of plants on the earth.
A.isB.are existingC.existsD.exist17.It was to save the child____________he got drowned.
A.thatB.whenC.butD.while18.Look,this roof is covered with____________leaves.
A.fallingB.fallenC.fellD.felt19.You aren't using this typewriter,____________
A.are youB.do youC.will youD.have you20.— You should have given them some suggestions.— ____________ ,but who would listen to me?A.So should IB.So I shouldC.So did ID.So I did​
ge20000507001年前1
快乐的猪米 共回答了19个问题 | 采纳率89.5%
1.选B
2.选A(到现在讲话时为止)
3.选D
4.选D
5.选C
6.选C
7.选D
8.选D
9.选C
10.选A
11.选B
12.选B
13.选B
14.选D
15.选B
16.选D
17.选D
18.选B
19.选A
20.选D
若对答案有不理解的欢迎据继续追问!O(∩_∩)O~
专升本英语选词填空。9. The roommated should( )to clean their dormitory
专升本英语选词填空。
9. The roommated should( )to clean their dormitory.
A. by turns
B. in turn
C. take turns
D. make turns
满分:2 分
10. If it is fine tomorrow, the sports meeting____ as scheduled.
A. is held
B. will be held
C. holds
D. will hold
满分:2 分
11. Beneath the streets of the modern city___ the walls and houses of the ancient town of the Ming Dynasty.
A. exist
B. does exist
C. are existed
D. existing
满分:2 分
12. As he watched Bill ___slowly across the field, he wondered how his friend was going to walk almost two miles and get over three fences.
A. to set off
B. being setting off
C. set off
D. would set off
满分:2 分
13. Take ____ half and give_____ half to your sister.
A. neither, either
B. each , the other
C. any, the other
D. either, the other
满分:2 分
14. The general manager proposed that they _______their decision until the next meeting
A. delay
B. delayed
C. will delay
D. delaying
满分:2 分
15. The skilled worker was employed on a permanent____.
A. consideration
B. reputation
C. advantage
D. basis
笑妍如花1年前3
五百里加急 共回答了19个问题 | 采纳率89.5%
9.C:take turn轮流
10.B:被动语态
11.C:被动语态
12.B:watch sb doing sth
13.D:either两者中的一个,the other另一个
14.C:一般将来时
15.B:reputation名誉
(个人意见,仅供参考)
关于数学极限问四个问题.如图.上边是我在书上看的例题,我有几个地方没看懂.我专升本自学的,基础一般.第三问的x/(e^x
关于数学极限问四个问题.如图.

上边是我在书上看的例题,我有几个地方没看懂.我专升本自学的,基础一般.
第三问的x/(e^x-1)前边忘加lim x→0了.
betawww1年前1
乌龙茶苑 共回答了13个问题 | 采纳率84.6%
1 不是约分了,x=π/4时,sin2x=cos(π/4-x)=1.

2 cosx=sin(π/2-x).三角函数的基本性质.

3&4.可以,但只能限于乘法因数或整体代换,加减不适用.

举个例子,.lim A+B/C C可以用等价无穷小,A,B不可以
本人准备参加2013年的专升本,作文水平差到爆,请问我该如何提高自己的写作水平,需要阅读什么题材书籍?
本人准备参加2013年的专升本,作文水平差到爆,请问我该如何提高自己的写作水平,需要阅读什么题材书籍?
杂志也行
jy000398011年前1
robort01 共回答了15个问题 | 采纳率93.3%
你可以参加耶鲁专升本的的急速提分一对一或者vip1对1 绝对让你的作文水平有极大的提高
高数求极限的专升本05年真题x趋向负无穷时 1---------------------------x(x+根号(x^2
高数求极限的专升本05年真题
x趋向负无穷时 1
---------------------------
x(x+根号(x^2-4))
下面的括号里是x加上根号下x平方减4,应该能看懂吧?
bat47851年前1
邱楠 共回答了17个问题 | 采纳率82.4%
答案等于0.5?我口算的 对了再说解法
关于数项级数的比较判别法.我想知道正项级数比较判别法和极限形式的比较判别法有什么区别呢.我是专升本的,大纲要求会比较收敛
关于数项级数的比较判别法.
我想知道正项级数比较判别法和极限形式的比较判别法有什么区别呢.我是专升本的,大纲要求会比较收敛法.不知道是不是也要掌握极限形式这种方法.我贴一道题上来,不知道为什么要除1/n.


云梦林1年前1
非洲小白脸耶 共回答了19个问题 | 采纳率94.7%
题目与做法没有关系.比较法的极限形式比不等式形式更好用,所以用得更多.用来进行比较的常数项级数一般是等比级数与P级数,这个题目用P级数很明显更容易判断,如果你知道两个多项式函数相除的极限在∞/∞时的结果就知道为什么这么做了: 只要让分子分母的次数相同,结果就是一个正数.本题的分子比分母低一次,所以只要把分子的次数“补足”,极限的结果就是1,根据比较法就可以判断正项级数的收敛性了.