一、单选题(多选、错选均不得分;每题3分) 1.函数: 的定义域是:( ) A. B. C. D. 2.若函数 可导

zeroluo2022-10-04 11:39:541条回答

一、单选题(多选、错选均不得分;每题3分) 1.函数: 的定义域是:( ) A. B. C. D. 2.若函数 可导
一、单选题(多选、错选均不得分;每题3分)
1.函数: 的定义域是:( )
A. B. C. D.
2.若函数 可导,且一阶导数 ,则不定积分
( )
A. B.
C. D.
3.要使函数 在 处连续,应补充定义 ( )
A. B. C. D.
4.交换二次积分次序: ( ).
A. B.
C. D.
5.在下列函数中,( )的弹性与 无关.
A. B. C. D.
二、填空题(每题3分)
1.已知: ,则其在点 的全微分值: .
2. .
3.设: , .
4. 曲线: 对应于 处的切线方程为: .
5.函数曲线: 的垂直渐近线是: .
三、计算题(每题8分)
1. 求:
2. 讨论函数 的单调性及曲线的凹凸性 .
3. 求: .
4. 已知区域 是由曲线: 所围成的闭区域,
计算: .
5. 求微分方程: 满足初始条件 的特解 .
四、当: 时,证明 : (10分)
五、设: ,确定 的值,使 在
处可导.(10分)
六、设生产某产品的数量与所用两种原料 的数量 有关系式:
,现欲用 元购料,已知原料 的单价分别
为1元和2元,问购进两种原料各多少时,可使生产的数量最多?

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c、《魏其武安侯列传》
d、《汉书》之《苏武传》、《
题号:20 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5.88
内容:
下列句子中的“寄”,有“寄托”之意的是(
).
选项:
a、君何淹留寄他方
b、老妻寄异县
c、未有第宅,寄居丘亭
d、可以托六尺之孤,可以寄百里之命
cbnew211年前1
残留碎片 共回答了19个问题 | 采纳率94.7%
11.a;12c;13b;14c;15b;16d;17a;18b;19a;20d
一个极难的英语单选题--------务必高手进----在线等
一个极难的英语单选题--------务必高手进----在线等
It is none of your business _____ other people think about you.
A:how B:what C:which D:when
但我觉得从句中不缺主语,也不缺宾语,怎么就能选B呢?
重点分析这个句子结构.
asetgerui1年前4
无名小卒007 共回答了17个问题 | 采纳率100%
think…… about sb 对…有(某种观点)
例如:What do you think about him?你觉得他这个人怎么样
原句中:think about 中间缺少东西,所以就用what来替代了.
原句是用的it替代的后面的_____ other people think about you.,避免头重脚轻._____ other people think about you.是主语从句.
英语单选题1.It _____ that he was Tom’s father.A.turned out B.turn
英语单选题
1.It _____ that he was Tom’s father.
A.turned out B.turned into C.turned to D.turned around
2.Your writing is good ____ some wrong spellings.
A.except B.except for C.besides D.in addition to
3.The accident ____ ten deaths.
A.resulted B.resulted from C.resulted in D.resulted out
4.The newspaper sent two reporters to ____ the space shuttle launching.
A.cover B.write C.watch D.discover
5.The teacher spent an hour____ to me yesterday.
A.talk B.talking C.to talk D.talked
6.They spent all their spare time,____ their spare money,on their experiments.
A.as much as B.as well as C.as long as D.as soon as
7.The customer accused the cook___ using canned potatoes.
A.for B.with C.of D.against
8.Don’t forget to post the letter for me,____?
A.do you B.will you C.are you D.can you
9.You can never____that fellow for help at a critical moment.
A.take on B.hold on C.count on D.hang on
10.With tears on her face,the old lady watched the little boy____ to a hospital.
A.send B.to do sent C.being sent D.sending
qq遇上野兽1年前5
happylightpig 共回答了15个问题 | 采纳率93.3%
1A 2B 3C 4A 5B 6B 7C 8B 9C 10C
绝对正确,相信我,我是名老师
一道初中英语时态单选题I ___ a job in a bank,but I didn't take it.A.offe
一道初中英语时态单选题
I ___ a job in a bank,but I didn't take it.
A.offered B has offered C is offered D was offered
但为什么不是B呢
没度和1年前4
悉悲欢恩怨原是诈 共回答了17个问题 | 采纳率76.5%
现在完成被动的话是has been offered
一个单选题____ snack do you need A.How many B.How much C.How long
一个单选题
____ snack do you need
A.How many B.How much C.How long D.How many bags
我确定“snack”没有打错,我看不懂,
“蛇”不是可数名词吗?这里没有加“s”,那题考察的是什么?我肯定题绝对没有打错.
freebird331年前1
duck87654321 共回答了11个问题 | 采纳率90.9%
蛇的英语是snake snack是小吃点心的意思……这个是不可数名词
一道单选题-Do you still remember the first time you_with a girl?-
一道单选题
-Do you still remember the first time you_with a girl?-Not exactly.
A.talked B.had talked 请附上讲解
秋风不落叶1年前3
vision83 共回答了14个问题 | 采纳率85.7%
B
英语单选题(请具体说明)1.Would you like to come to our house_____supper
英语单选题(请具体说明)
1.Would you like to come to our house_____supper?
A.at B.for C.with D.from
2.Everyone in the room____quiet.
A.is B.are C.were D.stand
3.They____eat apples at all.
A.always B.usually C.sometimes D.never
4.How is the weather today?It's not_____
A.better B.fine C.rain D.snow
5.Sometimes it____in winter in Guilin.
A.is rain B.rainy C.snows D.is snow
6.What's the temperature outside?It_____fifteen degrees.
A.are B.is C.does D.will
wanghx9281年前1
乡村老妖 共回答了12个问题 | 采纳率100%
1B for表示目的
2A 主语everyone是第三人称单数,用is
3D at all 与否定副词连用,选项中只有never否定副词
4B C、D是名词,排除;A是比较级,但题中没有比较的意味,所以选B
5C 题目缺少动词,C为动词.A、D均为be+n.应该为be+adj.才能选
6B 主语为第三人称单数,be动词用is
问几道英语单选题,希望得到分析解答
问几道英语单选题,希望得到分析解答
1.when he entered the room,he dound Mary ___at the desk,reading.
A.seating .B.sat.C.seated.D.sitting herself
为什么不选B,A看起来也可以吧,前面不是有when么..
2.it has been announced that candidates(候选人)___remain in their seats until all the papers have been collected.
A.can/ C.could/ C.may/ D.shall
惭愧没看懂,为什么不能选其他选项,我看哪个都差不多...
3.on no condition __such unfair conditions.
A.will we accept / B.we will accept
C.we are to accept / D.are we accepted
怎么那么多condition,为什么不能选A
4.rf
1楼能回答的详细一点吗,2楼的你不会就不用答了,
莽莽1年前2
为你I变乖 共回答了11个问题 | 采纳率81.8%
1、seating 是使就座的意思,find sb.doing sth.
2、 宣布所有的选手要坐在座位上直到试卷全部收齐 选D
3、on condition 是在……的条件下,on no condition 就是决不要,没任何条件.unfair condition 是不公平的条件
一、单选题(共 20 道试题,共 100 分.)
一、单选题(共 20 道试题,共 100 分.)
V
1.We have a growing population and _______ we need more food.
A.therefore
B.but
C.and
D.when
满分:5 分
2.Up to now,I ______ very successful.
A.am not
B.haven’t been
C.was not
D.were not
满分:5 分
3.Study hard,______ you will fail in the exam.
A.still
B.also
C.or
D.therefore
满分:5 分
4.We find _____ difficult that we should finish the work on time.
A.that
B.them
C.us
D.it
满分:5 分
5.They drank,______ and danced all night.
A.sang
B.sing
C.sung
D.singing
满分:5 分
6.He came by plane _______ by train.
A.instead
B.instead of
C.insteaded
D.insteaded of
满分:5 分
7.Mary __________Tom with his lessons this time yesterday.
A.helped
B.had helping
C.were helping
D.was helping
满分:5 分
8.You're ________ too heavy.You have to eat less food.
A.a few
B.a little
C.some
D.any
满分:5 分
9.It ______ hard when I left the house.
A.is raining
B.rains
C.was raining
D.will rain
满分:5 分
10.I will go and get some milk,since there is ______ left.
A.a few
B.few
C.a little
D.little
满分:5 分
11.I’ll no longer _______ my father.
A.depend in
B.depend on
C.independent in
D.independent on
满分:5 分
12.I went home,______ she stayed at the station.
A.but
B.or
C.so
D.and
满分:5 分
13._______ catch the early bus,he got up at 5 o’clock yesterday morning.
A.In order to
B.In order
C.For
D.In order that
满分:5 分
14.She seems to do these things _______.
A.purpose
B.on purpose
C.regular
D.depend on
满分:5 分
15.--Maria is wanted on the telephone.Where is she?—She _________ the library.You can find her there.
A.has left
B.will leave
C.has been to
D.has gone to
满分:5 分
16.The word “conclusion” means _______.
A.结构
B.结果
C.结婚
D.结论
满分:5 分
17.The train ________ before he got to the station.
A.had left
B.have left
C.has left
D.was left
满分:5 分
18.The wheat _____ cut three days ago.
A.were
B.was
C.had
D.has been
满分:5 分
19.I usually go there by train.---Why not _______ by boat for a change?
A.try to go
B.try going
C.try go
D.go to try
满分:5 分
20.It is important _____ her to come to the party.
A.for
B.of
C.in
D.at
满分:5 分
");
天下无左1年前2
ysybx 共回答了21个问题 | 采纳率95.2%
1-5 ABCDA
6-10 BDBCD
11-15 BAABD
16-20 DADAA
一道英语单选题,—What do you think of the Final Match of Australian
一道英语单选题,
—What do you think of the Final Match of Australian Open?
—I’ve never seen ______ one.It lasted for more than 5 hours.
A.a longx05B.a longerx05C.the longerx05D.the longest
老师,为什么选B啊?
书_友1年前1
zifeiyi1985 共回答了19个问题 | 采纳率94.7%
回答强调的是 Final Match of Australian Open持续时间长,
所以前面说的是,没有看过一个比这个更长的,没有特指是哪个
所以,选B
(生化单选题)关于锌指结构的描述,正确的是:
(生化单选题)关于锌指结构的描述,正确的是:
1、锌指是一种蛋白质的特殊区域,似手指状且含有锌,与DNA结合有关
2、锌指是一种蛋白质的特殊区域,似手指状且含有锌,与RNA结合有关
3、锌指是一种蛋白质与DNA结合所形成的特殊空间结构
4、锌指是一种细胞中较为常见的DNA与RNA相互作用基元
mamanini11221年前1
andyjane 共回答了19个问题 | 采纳率89.5%
锌指是一种蛋白质的特殊区域,似手指状且含有锌,与DNA结合有关
一道单选题,There___ a parents meeting tomorrow afternoon.A.are B.
一道单选题,
There___ a parents meeting tomorrow afternoon.
A.are B.will have C.is going to be D.is going to have
应选C,D为什么不对呢
Ynwfv_vv1年前5
片山愁 共回答了15个问题 | 采纳率93.3%
there be 句型中的动词 be 可以用其他助动词或情态动词修饰,如:There (must) be a boy in it.里面一定有个男孩子.There (had )been a line of trees in front of the house before he lived there.他居住在那里之前...
帮我做下这些英语单选题,1.He appreciated the girl very much,because she(
帮我做下这些英语单选题,
1.He appreciated the girl very much,because she( ) him a lot with his maths.
A.would help B.was helping C.had helped D.has helped
2.I do think you should have( )to help.
A.referred B.turned C.related D.offered
3.He ( )to set a new world record,but was disturbed by a sudden suond.
A.was hoping B.has hoped C.hoped D.had hoped
4.-what do you think about the accident?
-( )It's frightening even to think about.
A.It's terrific B.It's a nightmare C.I don't enjoy it D.It's hard to say
风连1年前4
翻手风云覆手雨 共回答了10个问题 | 采纳率100%
1,C,她已经帮助温习数学,过去完成时
2,B,完整形式是turn to sb.for help
3,D,原本希望创造一项新纪录
4,B,简直就是一场噩梦
一道英语单选题的讲~~a couple who can't ______ on minor issues is goin
一道英语单选题的讲~~
a couple who can't ______ on minor issues is going to have difficulty resolving the many problems that will crop up in their marriage.
A.operate
B.detail
C.compromise
D.cultivate
sbzs1年前1
xuruikeji 共回答了13个问题 | 采纳率92.3%
夫妇连生活中的小问题都解决不了话,怎么能解决好在他们婚姻中突然出现的大难题
只有operate能和on搭配 B是详述,细说 C是妥协,折中 D是种植,培育
关于英语的,帮下忙,题号:11 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5内容:This is t
关于英语的,帮下忙,
题号:11 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
This is the _____ piano on which the composer created some of his greatest works.
选项:
a、actual
b、genuine
c、real
d、original
--------------------------------------------------------------------------------
题号:12 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
Those football players had no strict _______ until they joined our club.
选项:
a、practice
b、education
c、training
d、exercise
--------------------------------------------------------------------------------
题号:13 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
Many animals ____ green plants for their food.
选项:
a、base on
b、look for
c、depend on
d、carry out
--------------------------------------------------------------------------------
题号:14 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
Success belongs ____ those who work hard.
选项:
a、on
b、to
c、in
d、for
--------------------------------------------------------------------------------
题号:15 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
The happy look on his face ______ that he had passed the exam successfully.
选项:
a、explained
b、suggested
c、expressed
d、described
--------------------------------------------------------------------------------
题号:16 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
All those details of daily living have made Mrs.Richard _____ common.
选项:
a、nothing but
b、anything but
c、above all
d、rather than
--------------------------------------------------------------------------------
题号:17 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
Uncle John has a ____ of closing his eyes when he tells a story.
选项:
a、custom
b、hobby
c、nature
d、habit
--------------------------------------------------------------------------------
题号:18 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
Had the damage been worse,the insurance company ____ more.
选项:
a、pay
b、paid
c、had paid
d、would have paid
--------------------------------------------------------------------------------
题号:19 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
My camera can be _____ to take pictures in cloudy or sunny conditions.
选项:
a、treated
b、adopted
c、adjusted
d、cured
--------------------------------------------------------------------------------
题号:20 题型:单选题(请在以下几个选项中选择唯一正确答案) 本题分数:5
内容:
图形:
选项:
a、
b、
c、
d、
sstxgt3331年前1
tzzjm 共回答了20个问题 | 采纳率100%
11.B 这才是真正的钢琴,作曲家用它做出了他最最大的作品.(真正的)
12.C 这些足球运动员在进入俱乐部以前没有进行过严格的训练.(训练)
13.C 许多动物都是以绿色植物为食(依靠,以.)
14.B 成功属于努力的人 (belong to 属于)
15.B 她那快乐的表情暗示她成功通过了考试(暗示)
16.D 日常生活的所有的细节构成了Mrs.Richard,而不是共性.
17.D John叔叔有闭着眼睛说话的习惯
18.D 损失越严重,保险公司就赔得越多.(过去将来完成时)
19.C 我的照相机在阴天或者晴天都能拍照.(调整.句面意思是我的相机能能够根据阴天,晴天环境做出相应调整而拍照.)
一、单选题(共 10 道试题,共 30 分.)
一、单选题(共 10 道试题,共 30 分.)
1.抑制通货膨胀的收入***是指().
a.收入初次分配
b.收入再分配
c.收入-价格***
d.以上均正确
满分:3 分
2.如果与可支配收入无关的消费为300亿元,投资为***,平均储蓄倾向为0.1,那么,在两部门经济中,均衡收入水平为().
a.770亿元
b.4300亿元
c.3***
d.7000亿元
满分:3 分
3.宏观经济***的目标是().
a.充分就业和物价稳定
b.物价稳定和经济增长
c.同时实现充分就业、物价稳定、经济增长和国际收支平衡
d.充分就业和公平
满分:3 分
4.根据相对收入假说,若某年收入下降,则该年apc().
a.提高
b.下降
c.不变
d.不确定
满分:3 分
5.投资乘数等于().
a.收入变化除以投资变化
b.投资变化除以收入变化
c.边际消费倾向的倒数
d.(1-mps)的倒数
满分:3 分
6.中央银行增加或减少对商业银行贷款的方式().
a.增加和利率的提高
b.减少和利率的提高
c.增加利率的降低
d.减少和利率的降低
满分:3 分
7.关于***与通货膨胀之间的关系,菲利普斯曲线反映了().
a.20世纪30年代大萧条时期的情况
b.第二次世界大战其间的情况
c.20世纪50-60年代的情况
d.20世纪80年代的美***况
满分:3 分
8.如果边际储蓄倾向为负,那么()
a.边际消费倾向等于1
b.边际消费倾向大于1
c.边际消费倾向和边际储蓄倾向之和小于1
d.边际消费倾向小于1
满分:3 分
9.消费函数的斜率取决于().
a.边际消费倾向
b.与可支配收入无关的消费的总量
c.平均消费倾向
d.由于收入变化而引起的投资总量
满分:3 分
10.通货是指().
a.铸币、纸币
b.储蓄存款
c.活期存款
d.定期存款
静寂月亮城1年前1
fattershen 共回答了18个问题 | 采纳率83.3%
1.c 2.b 3.c 4.a 5.d 6.a 7.c 8.b 9.a 10.a
一道单选题:关于商品价格的在商品的流通中,货币的作用是(    )A.能决定商品的价格,也能实现商品的价格B.能决定商品
一道单选题:关于商品价格的
在商品的流通中,货币的作用是(    )
A.能决定商品的价格,也能实现商品的价格
B.能决定商品的价格,不能实现商品的价格
C.不能决定商品的价格,只能实现商品的价格
D.不能决定商品的价格,也不能实现商品的价格
小猫mimi19791年前1
lxw5851110 共回答了20个问题 | 采纳率90%
C.不能决定商品的价格,只能实现商品的价格
这个单选题请解答:The employment rate has continued to rise in big ci
这个单选题请解答:
the employment rate has continued to rise in big cities thanks to the efforts of the local
***s to increase (it or that?).最后一个词是it 还是that 为什么?他俩有什么区别?
y9550295061年前3
青衣28 共回答了12个问题 | 采纳率91.7%
用it.代词it that作宾语时区别:that有后置定语,it单独用.
以下单选题该选哪个?在权益结合法下,所有参与合并企业的资产、负债和所有者权益都以()转入合并后的企业.A、历史成本B、公
以下单选题该选哪个?
在权益结合法下,所有参与合并企业的资产、负债和所有者权益都以()转入合并后的企业.
A、历史成本
B、公允价值
C、账面价值
D、重置成本
shiyipu8410241年前2
ouchaohai 共回答了17个问题 | 采纳率100%
C
单选题选哪个
单选题选哪个

泪为什么是咸的1年前1
toastyhl2007 共回答了14个问题 | 采纳率78.6%
A.
初二英语一个单选题,两分钟内回答追加100分!
初二英语一个单选题,两分钟内回答追加100分!
Miss Liu____two hours ago.
A.reached back to home B.got back to school C.returned back home D.took the bus back school
applelove1231年前6
珂琳贝儿 共回答了21个问题 | 采纳率90.5%
29一个高中英语单选题----高手---务必高手帮忙
29一个高中英语单选题----高手---务必高手帮忙
29、I smell something _____ in the kitchen.Can I call you back in a minute?
A:burning B:being burnt
考查非谓语动词.burning在句中作宾语补足语,补充说明something,意为“我闻到有东西烧焦的味道.”
B项中being burnt 用作后置定语,则翻译为“闻到正在被烧的某东西”,这不符合常理.我想知道为什么不符合常理.我觉得B项"正在被烧" 也对.
解释是“做后置定语”,我觉得B项是宾补。所以他的翻译错了。并不是闻到---的东西。可以翻译为“闻到有正有被烧东西的味道”。
willem20001年前4
ycxjhm 共回答了14个问题 | 采纳率92.9%
urning已经可以完全形容出该语境下的所有情态.正烧焦,符合特别是该句的现在时.B较真起来也是没有什么大问题的.但是感觉和情态发生了变化.重点移位到being上去了,而这个词很中性,没什么演示和形容色彩.
再者,这句话里本来的主语是I,后来又在宾语从句中出现了主语something,这已经是有曲折了,你再来个被动,脑子要去转几个弯比较费劲.最好的是主语统一一点,句子比较平畅.
最后,回答你的问题,烧起来,就是因为该物体具有燃烧性,是自己可以燃烧的,所以不用被动.
一道单选题 I haven't got used to ___a dormitory room with 8 peopl
一道单选题
I haven't got used to ___a dormitory room with 8 people,for I used to ____in a single room.
A.share,living B.sharing,live C.share,live D.sharing,living
scorpion7771年前2
fyhmfx 共回答了20个问题 | 采纳率90%
B.sharing,live
原因:
used to是“过去曾经...”的意思 ,后接动词
比如:He used to be a teacher.他曾经是一名教师
I used to go swimming once a week.我曾经每周都去游泳
be used to是“习惯...”的意思 ,后接名词
比如:He is used to getting up early他习惯了早起
Mary is used to her husband's bad temper Mary习惯了她丈夫的坏脾气
get used to表示“渐渐习惯.”与“be used to”不同,get used to强调的是由“不习惯”到“习惯”的这个过程,而“be used to”所强调的只是“习惯了”这个状态
比如:The food here is not so tasty but you will get used to that这里的伙食不怎么样,但你会慢慢习惯的
The food here is not so tasty but he is used to that这里的伙食不怎么样,但是他“已经”习惯了
请问 这道单选题为什么选A呢? 请详细解答一下 谢谢
请问 这道单选题为什么选A呢? 请详细解答一下 谢谢
————to advertisements constantly can help to change people's opinions over time .
A. Exposed B. Being exposed
cyt73291年前1
gsrdg 共回答了13个问题 | 采纳率92.3%
被动语态倒桩到开头Be要省略吧.
单选题 A B C选什么?ABC哪个是正确的?A.DB.EC.G选哪个
w3703507851年前5
森林爱恋 共回答了14个问题 | 采纳率85.7%
D
介词和介词短语 单选题——What does he look like?——He is short _______ bl
介词和介词短语 单选题
——What does he look like?
——He is short _______ black hair .
A.whit B.on C.in D.about
Thank you _______ teling me about the Midautumn Festival
A.For B.about C.in D.on
That is a photo _____ an apple.
A.in B.of C.at D.on
Simon isn't good ___ maths .Could you help him _____ his maths?
A.with ,with B.at,at C.with ,at D.at,with
The thief is in her room .she runs out _______.
A.for help B.for lunch C.to help D.ask help
舞动神话5201年前2
帅哥qww 共回答了24个问题 | 采纳率91.7%
同学,很高兴回答你的问题

正确答案:

A with
A for
B of
C at,with
A for help




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希望能帮到你,/>不明白请继续追问,可以详谈嘛(*^__^*)
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一到简单的英语单选题【 】plasant surprise you gave me.a.what b.what a c.
一到简单的英语单选题
【 】plasant surprise you gave me.
a.what b.what a c.how d.how a
以上.
wtm3163161年前4
hdww 共回答了7个问题 | 采纳率100%
选A
感叹句的构成:
1.what+a/an +可数名词……或what+不可数名词/可数名词复数……!
2.how+形容词或副词……!
例句:1.what lovely boys they are!
2.what a good book it is!
3.what bad weather it is !
4.how good the book is!
5.how blind you are!
帮忙看一到英语单选题,Children who are often( )to will become selfish w
帮忙看一到英语单选题,
Children who are often( )to will become selfish when they grow up.
A.give in B.given up C.give up D,given in
但是一头雾水,
kaylan1年前5
小霞米77 共回答了17个问题 | 采纳率76.5%
e given in to
这里是关键 这里是 被让步 承受别人的让步
就是 人们老给他们让步 老宠着他们的意思
这样的孩子长大后当然会自私了.
一到英文单选题I don't think he could have done such a stupid thing
一到英文单选题
I don't think he could have done such a stupid thing last night,____?
A.do I B.could I C.did he D.has he
我才上高一学生,以前做的反义疑问句超简单,但是现在被这道题难住了,纠结死……
陶小虾1年前1
行于树下 共回答了12个问题 | 采纳率100%
think suppose believe 在宾语从句(he could have done such a stupid thing last night)否定时 否定提前到主句所以don't think
但基于主语不同分为两类
1、主语是i 对从句提问 那么疑问根据从句来 先把否定词返回couldn't have done 这个结构是虚拟表猜测 (类似的有mustneed shouldought tomaybe able to have done) 所以提问 按照该句本来应有的时态did such a stupid thing last night 所以did he
2、主语非i只要对主句提问就行
初三生物题(急)单选题1、人体内消化脂肪的器官、所需要的酶、消化的终产物、吸收器官分别是( ) A 胆囊、胆汁、脂肪微粒
初三生物题(急)
单选题
1、人体内消化脂肪的器官、所需要的酶、消化的终产物、吸收器官分别是( ) A 胆囊、胆汁、脂肪微粒、胃 B 肝脏、胆汁、甘油和脂肪酸、小肠
C 小肠、胆汁、甘油和脂肪酸、小肠 D 小肠、肠脂肪酶和胰脂肪酶、甘油和脂肪酸、小肠
2.下列食物的有机成分中,只能在小肠里被消化的是( )
A 淀粉 B 麦芽糖 C 蛋白质 D 维生素
3.能消化蛋白质的器官是( ) A 口腔和小肠 B 胃和小肠 C 小肠 D 口腔
4.小肠绒毛不能直接吸收的营养物质是( )
A 氨基酸 B 麦芽糖 C 维生素 D 脂肪酸
bjlm20001年前8
Tangel1120 共回答了19个问题 | 采纳率78.9%
1.D
2.B(A C排除,维生素可以在胃被吸收很小一部分)
3.B(胃虽然能分泌胃蛋白酶,但是量太少,可以忽略,也可以算能消化.看出题者的意图选B还是C)
4.B(其余3个都可以.脂肪分解产物就是甘油和脂肪酸,脂肪分解都在小肠了,吸收难道还跑到大肠)