订正的作业题.(14 9:50:2)

请帮忙2022-10-04 11:39:542条回答

订正的作业题.(14 9:50:2)
某住宅区要建水池,要求水池的长与宽的比为2比1,并且沿水池前侧距池边保留3M宽的空地,其他三侧距池边各保留1M宽的通道,当水池的长和宽各为多少时,整个水池区域的面积是392M平方.

已提交,审核后显示!提交回复

共2条回复
e_a_s_y 共回答了25个问题 | 采纳率96%
设水池宽为X,则长为2X,依据题意得:
(2X+4)(X+2)=392
解得X=12(X=-16舍去)
即水池宽为12,长为24
1年前
qiyafeng 共回答了1个问题 | 采纳率
设宽为X,长为2X,则
(2X+4)(X+2)=392
解出来就可以了
1年前

相关推荐

语文没考好,这是几个错题,老师让订正,答案必须准确,不然就会被骂,在的同志们,我感激不尽
语文没考好,这是几个错题,老师让订正,答案必须准确,不然就会被骂,在的同志们,我感激不尽
《记承天寺夜游》中议论句表现苏轼怎样的心境?
《答谢中书书》表达最着怎样的思想感情?
《湖心亭看雪》中作者为何以舟子的喃喃之语来收束全文?
什么叫白描手法?
炻天使之翅1年前1
wxp123ww 共回答了24个问题 | 采纳率83.3%
1、何夜无月,何处无松柏,但少闲人如吾两人则尔.
表达了他豁达,善于排解的心境.
2、《答谢中书书》表达了作者要像谢灵运那样,陶情怡乐于这美妙的山水之中,抒发了归隐林泉的终身志趣.
3、展示他钟情山水、淡浊孤独的独特个性.
4、白描原是中国画的一种技法,指描绘人物和花卉时用墨线勾勒物象,不着颜色,称为“单线平涂”法.它源于古代的“白画”. 在文学创作上,“白描”作为一种表现方法,是指用最简练的笔墨,不加烘托,描画出鲜明生动的形象.我国优秀的古典小说《水浒》、《三国演义》等多用白描的手法;鲁迅的作品,也有许多使用白描手法的范例.
找出下列词语中的错别字,加以订正。
找出下列词语中的错别字,加以订正。
千锤百炼 苛捐杂税 万赖俱寂 风烛残年 因地制宜 悲喜交接 司空见惯
故弄弦虚 不能自已 气势汹汹 无精打采 自出心裁 别具匠心 善男幸女
改正:
nini_happy1年前1
会飞D壁虎 共回答了17个问题 | 采纳率94.1%
籁、集、积、信
下列短语中有4个错字,把它们找出来并订正。
下列短语中有4个错字,把它们找出来并订正。
刻苦钻研 束手无策 锐不可挡 走头无路 寻物启示 责无旁代 莫名其妙 买椟还珠
错字:______________________________  正字:______________________________
syGI10161年前1
心不我属 共回答了17个问题 | 采纳率94.1%
错字:挡 头 示 代
正字:当 投 事 贷
帮我订正和修改这篇英文自我介绍以下是我自己写的去外航面试的自我介绍,题目是为什么想做这个职位和以后的目标.When I
帮我订正和修改这篇英文自我介绍
以下是我自己写的去外航面试的自我介绍,题目是为什么想做这个职位和以后的目标.
When I was kid .Being a stewardess’ becoming one of my possible dreams.Flying in the sky and wear beautiful set.Always keep smiling and look good.But it’s a kind of faraway from me at that time.But I always wait for the chance.
I am outgoing kind person and get on well with others.I make friends in college and take part in community activities.I also do part time jobs to gain my society experience.I used worked in restaurant as a waitress for 3 month and I really learn much from it.I listen to music and draw sometime.I have skilled at painting even though I have never been taught.
For the reason I am interested in languages I choose Korean to be my specialized field in university.For the 4 years’ study I am more skilled on it and get to know Korean better.I think it’s really do help to the flight attendants work.
I interested in learning things.In the best year of my life I think there’s no time to lose and I have to find a work that fit me the best and been worth to devoted to all of my life.Asiana Airlines is a famous global airline company and I think that’s the place to make my dreams come true.It’s the chance that I always keep waiting for.That’s the reason why I’m applying for this position.
If I enrolled by Asiana Airlines I will try my best to be a competent flight attendants.I will keep smiling to everyone and serve passengers with no complain.Try to communicate with others and be honest to others.Improve myself while I’m study.For the unique goal of my life I will try my best to make my dream come true.
I am confident that I am qualified for the position and if you made the decision you will be no regrets with it!Think you.
本人对这篇自我介绍不是很自信,希望能只出错误并给予更专业的修正,能够有所补充更好^_^
言没法不尽1年前1
wszgr00001 共回答了21个问题 | 采纳率100%
My name is ..., I am 22 now. I must say that it is a very great opportunity for me to get this interview. Thank you very much.
To be a stewardess is always one of my dreams since I was still a child. and today ,I am such close to my dream. So I am very happy today.
Flying in sky , wearing beautiful suit, travelling between different areas,even different countries were the first image that the job of stewardess had given me. And I like beauty, I like sky, i also like travelling. So I think stewardess is the very good job for me.
Then I was servered by a stewardess when I first took an airplane. The warm care, the patient and helpful answer, the gentle service and the calm performance when met a turbulence, these really touched me. The thinking of a stewardess changed in my mind. I realize that with the beauty suit, and the angle-like smilling ,there must be a very kind heart inside, With the flying in sky, they must be so brave and have great sence of responsibility to overcome the fear of potential danger. So I think stewardess is a very esteemed job and I want to be one of them more.
For me, I think I meet the physical demands first.
Second, I am an outgoing and kind-hearted person. I always get on well with others and I like making friends. In college school, I also took part in community activities.
And third, I have a clear plan for my carrer. So I did part-time jobs,such as waitress, to enrich my society experience. I used to worked in a restaurant as a waitress for 3 months and that really helped me to learn a lot.
As for my hobby, I like listening to music, painting and doing sports .I am also interested in languages, and I choosed Korean to be my specialized field in university. 4 years’ study of Korean , I can use this language well. I think it really do help to the flight attendants work.
Asiana Airlines is a famous global airline company, and I just think this is the very place to make my dreams come true. It gives the chance that I have been always waiting for. So I applied for this position.
I have confidence to be a competent flight attendants. With my smile,my service, my brave heart and sence of responsibility, I have confidence to get esteem for myself and my company. and also get the passengers' satisfaction.
Thank you very much.
一篇初二水平的英语作文.希望大家找找哪有有错误告诉我订正.
一篇初二水平的英语作文.希望大家找找哪有有错误告诉我订正.
Is A family teacher necessary.
More and more middle school students are going to having family teacher .Some people think that it is necessary.But they are also some people don't agree.
In my opinion,I prefer the second viewpoint.First of all,students need some rest at the weekend .Than some family teachers are in the purpose of making money.Therefore,family teacher is not necessary .We can study well if we hard working.
如果还有错的地方告诉我,已经改了某些地方,但本人英语水平不好,错的地方也找不出来.
nwqing1年前1
左耳_右耳 共回答了17个问题 | 采纳率82.4%
1.题目中,A小写为a
2第一行:.are going to have
3.第二行改为:But there are also ..
4.第二段第一句,I prefer to
5.第二段第一句最后,Than 最好改为 The second,因为前面刚写到first of all 第一点
6.最后一句,改成 if we work hard
找出括号内错误的单词,并订正正确的:(would) you like (any) pi
找出括号内错误的单词,并订正正确的:(would) you like (any) pi
找出括号内错误的单词,并订正正确的:(would) you like (any) pies? no .( thanks),
cuixuesi12971年前1
shemar_fr 共回答了19个问题 | 采纳率73.7%
any改成some
On Sundays they often go to grandma home.哪里有错?帮我订正下 急
jeffrey5071年前4
未想 共回答了18个问题 | 采纳率100%
On Sundays they often go to grandma's home.
下列词语中有四个错别字,找出来,并订正。
下列词语中有四个错别字,找出来,并订正。
打报不平
炉火纯青
理直气壮
下车伊始
精湛绝伦
卷秩浩繁
乘热打铁
洗耳恭听
离经判道
无懈可击
___________________________________________
小溪听音1年前1
kafei529 共回答了21个问题 | 采纳率90.5%
报—抱 乘—趁 秩—帙 判—叛
帮忙订正错题
帮忙订正错题

xyhe_19821年前1
ppp76 共回答了19个问题 | 采纳率89.5%
1. 25 2. 40+40x(1+x)=48.4 3. c
最近几年汉字的字音发音变化最近几年国务院对汉字的发音有哪些新的订正有些词的发音,现在和过去念的不一样比如乡音无改鬓毛衰(
最近几年汉字的字音发音变化
最近几年国务院对汉字的发音有哪些新的订正
有些词的发音,现在和过去念的不一样
比如乡音无改鬓毛衰(shuai/cui)
焜黄华叶衰(shuai/cui)
呆(dai/ai)板
以塞(sai/se)忠谏之路也 ——出自《出师表》
民殷(yin 1声/3声)国富而不知存蓄 ——《隆中对》
跨州连郡者不可胜数(shu 3声/4声) ——《隆中对》
湖光秋月两相和(he 4声、2声)
云中妖1年前1
LiuLiPWF 共回答了20个问题 | 采纳率100%
以国家语委、国家教委和广电部于1985年12月发布的《普通话异读词审音表》为准.
人教版语文九年级上册第六课第七课答案(我要订正)
人教版语文九年级上册第六课第七课答案(我要订正)
上面有基础平台,每课后还有片段写作,快
cara35621年前1
cello_hi 共回答了20个问题 | 采纳率85%
参考资料上有
He is a honest boy.we all like him找出错误并订正 Jouney
He is a honest boy.we all like him找出错误并订正 Jouney
He is a honest boy.we all like him找出错误并订正
Jouney to the West is my favourite character
Dododododo1年前2
我爱孙煦然 共回答了22个问题 | 采纳率90.9%
a改成an
找出下了成语中的错别字并订正1.人才倍出 迫不及待 攻无不刻 同舟共济 ( )2.赴汤蹈火 一园复始 随心所浴 变本加利
找出下了成语中的错别字并订正
1.人才倍出 迫不及待 攻无不刻 同舟共济 ( )
2.赴汤蹈火 一园复始 随心所浴 变本加利 ( )
3.专心至志 别具一格 实事求是 旗开得胜 ( )
tamon1年前1
daisy1769 共回答了11个问题 | 采纳率81.8%
1 人才【辈】出
2 随心所【欲】
3 专心【致】志
判断题(对的画“√”,错的画“×”并订正或说明理由)
判断题(对的画“√”,错的画“×”并订正或说明理由)
1、1.33…=1.33()
2、0.8>0.88…()
3、0.988…保留三位小数是0.980()
4、0.6666是循环小数()
5、循环小数是无限小数()
liang36267991年前5
紫木心 共回答了14个问题 | 采纳率78.6%
前四个错,第五个对
急!麻烦帮忙指出以下两个英语句子的错误及订正后的正确句子
急!麻烦帮忙指出以下两个英语句子的错误及订正后的正确句子
1, where are the pandas come from ? 2, I am usually play volleyball after school 。thank you very much !
咪aa1年前2
爱可思 共回答了21个问题 | 采纳率81%
第一个句子把come删去,或者把are改为do第二个句子把am删去
判断题(对的画“√”,错的画“×”并订正或说明理由)
判断题(对的画“√”,错的画“×”并订正或说明理由)
1、9.666是循环小数()
2、循环小数是无限小数()
3、无限小数就是循环小数()
4、0.88……保留三位小数是0.880()
5、3232.32是有限小数,也是循环小数()
e路上有你1年前1
zl0010 共回答了22个问题 | 采纳率90.9%
1.错,循环小数是无限小数
2.对.从小数点后某一位开始不断地重复出现前一个或一节数字的无限小数, 叫做循环小数
3.错,从小数点后某一位开始不断地重复出现前一个或一节数字的无限小数,叫做循环小数
4.错,四舍五入应该是0.889
5.错.循环小数是无限小数...
英语比较差,求告诉这些英语错在哪,怎么修改.好让我自己订正
英语比较差,求告诉这些英语错在哪,怎么修改.好让我自己订正
1.Either parents nor teachers believe that children should be given too much homework.
2.I was watching an exciting TV play until the screen went blank.
3.What did you last night when the fire was breaking out?
4.We want you to be not only a useful member of society,but also to be a responsible one.
5.They just dashed out of the house when it collapsed.
6.What we should do now is not to increase production,but improving the quality of our product.
7.Either the boy's parents nor his brothers are to stay at his bedside during the night.
8.It might be days when the patient can stand on his own feet.
9.Where have you been?I've looked for you the whole morning.
10.In the 21st century,a computer will play a more and more important role in our everyday life.
11.Something which a witness said during the trial has been bothering me.
12.Many parents mistakenly believe that the more toys children have,they will be more creative.
13.A house without a book is as a room without a window.
14.He was very glad to see his old friend that tears ran down his cheeks.
15.People believe that tomorrow's car will be bigger,faster,and more comfortable as before.
16.Both on land and sea,helicopters have rescued many people.
17.Jim is intelligent,but not as hard-working like his sister.
18.The most humorous person whom I've ever met is my teacher of Chinese.
19.I don't believe an old man of 80 could be so strong to knock down a door.
20.All those that the people want are lasting peace and social progress.
后面还有20题
老不硬1年前4
3200674 共回答了22个问题 | 采纳率81.8%
也太多了点吧!
1.Either parents nor teachers believe that children should be given too much homework.
Either改为Neither,neither...nor...既不.也不...
2.I was watching an exciting TV play until the screen went blank.
until改为when,并列连词表示“就这这时”
3.What did you last night when the fire was breaking out?
改为What were you doing...原题漏打了do.
4.We want you to be not only a useful member of society,but also to be a responsible one.
去掉but also后的to be,not only...but also...对等并列.
5.They just dashed out of the house when it collapsed.
when改为before.
6.What we should do now is not to increase production,but improving the quality of our product.
but后improving改为to improve,not.but.不是.而是.,也是对等并列.
7.Either the boy's parents nor his brothers are to stay at his bedside during the night.
改为Either...or...或Neither...nor...,都能说得通,道理同第一题.
8.It might be days when the patient can stand on his own feet.
when改为before,意为:也许过几天病人才能站起来.
9.Where have you been?I've looked for you the whole morning.
后面改为I've been looking for.
10.In the 21st century,a computer will play a more and more important role in our everyday life.
a改为the,并非特指一台电脑,the加单数名词表示某一类属.
11.Something which a witness said during the trial has been bothering me.
which改为that,先行词为指事物的不定代词关系代词用that.
12.Many parents mistakenly believe that the more toys children have,they will be more creative.
可以说没问题,但出题人肯定想让你把they will be more creative改为the more creative they will be.
13.A house without a book is as a room without a window.
as改为like.
14.He was very glad to see his old friend that tears ran down his cheeks.
very改为搜,so...that.
15.People believe that tomorrow's car will be bigger,faster,and more comfortable as before.
as改为than.
16.Both on land and sea,helicopters have rescued many people.
and后加on,both...and...对等并列.
17.Jim is intelligent,but not as hard-working like his sister.
like改为as,not as...as.
18.The most humorous person whom I've ever met is my teacher of Chinese.
可以不改,但出题人想让你把whom改为that,先行词被最高级修饰通常用that,但那指的主要是事物.
19.I don't believe an old man of 80 could be so strong to knock down a door.
so strong后加as,so...as to...如此...以至于.
20.All those that the people want are lasting peace and social progress.
删除those,先行词是不定代词all.
"平均速度就是初末瞬时速度的平均值" 这句话正确吗?若错误应如何订正?
32fgreiuo1年前4
goupiwangzhan 共回答了17个问题 | 采纳率82.4%
定义:平均速度是指在某段时间内物体运动的位移与所用时间的比值,它是矢量,有方向性.
对于做匀变速直线运动的物体而言,才有平均速度=△s/△t=(V0+Vt)/2
我们数学老师让我们 试卷没即使订正的抄试卷除了名字不要抄之外这样算犯法吗 就算不犯法何必让我活的累
我们数学老师让我们 试卷没即使订正的抄试卷除了名字不要抄之外这样算犯法吗 就算不犯法何必让我活的累
这个星期我要抄7张 我知道我很懒 但我上课还是听的 不过真的不想学 上课发发呆 作业抄抄就行了 不会订正老师让我们去问 大家知道作为一个学问 问老师总算一点那个感觉 我也就想讨个说法 这算犯法吗 还有我们化学老师星期5默写抄3遍订正 但是呢到星期一订正的话要抄10遍 多少算体罚啊 有的时候一个表达式错了抄50遍 大家上个学不容易搞得我越来越不想学了 老师托课又怎么办 吃饭时候老师留我呢 希望给点老师经常会触及到的法律 比如托课 罚抄 上课站起来 我还有个同学 应为影响别人 每次都到外面去 虽然他不学那个学科的
我最讨厌抄 而且我速度很慢 我个人认为 这只是老师在浪费我的生命罢了 有什么用 真的可以记住吗 带着不爽的心情去抄 反而不想学习了 更讨厌学习了 还为我好吗 补充一点 他说再不抄给他 他不让我上课乐 这个学科老师没同意我不学
注意 他不过不让我上课算犯法吗 还有我们为什么一定要听老师的 都是一个生命 我们应该自己选择自己的生活
小迷子1年前1
我买不起宝马 共回答了10个问题 | 采纳率90%
体罚是犯法的,不过,当今应试教育,老师似乎认准了:写是成功的唯一途径.所以说,我们只好自认倒霉了,谁让这个时代老师是这么认为的呢?楼主,我对您深表同情!
是的,大量抄写不但学生不想写,写得潦草,更重要的,是学生厌恶了此门课的学习,哎.
希望帮到你 .
童鞋,采纳吧,呵呵.
This is you pen.这个句子哪错了,并订正.
酷豹1年前1
木樨兰 共回答了19个问题 | 采纳率100%
This is your pen
拂动的近义词多一点,我订正考卷用
liu-yue1年前4
苇草 共回答了17个问题 | 采纳率94.1%
摇拂 拂过 摇动 抚摸 扶动
5个 应该可以了
可以追加么?求求你了!绞尽脑汁想出来的!
How many paper do they collect?这句话哪错了?订正
drfpr1年前3
天冷就回家- 共回答了14个问题 | 采纳率100%
MANY改成MUCH
下面每道题都有一处错误,你能找出错误的一项并在横线上订正吗?
下面每道题都有一处错误,你能找出错误的一项并在横线上订正吗?
1.She's fater than the other girls.
2.The museum is in the left of me.
3.My school is three kilometer away from my home.
4.I can get to home by car.
漓江打猎去1年前1
叫我奶嘴 共回答了17个问题 | 采纳率94.1%
1.She's fater(fatter) than the other girls.
2.The museum is in(on) the left of me.
3.My school is three kilometer(s) away from my home.
4.I can get(go) to home by car.
留光溢彩这个词里有没有错别字?如果有,怎么订正?
冬寒1年前1
annkok 共回答了17个问题 | 采纳率76.5%
流光溢彩
“留”应改为“流 ”
找出下面一段话中写错的字词并订正。
找出下面一段话中写错的字词并订正。
我们进入中学以经半年了,老师们精精业业地工作,同学们克苦努力地学习;校园里文明礼貌尉然成风,校荣校貌涣然一新,真是一片兴兴向荣的景象。
_________________________________________________________________________________________
wangzhao51581年前1
一直在单身 共回答了20个问题 | 采纳率85%
以一已 精精一兢兢 克一刻 尉一蔚 校荣一校容 涣一焕 兴兴一欣欣
Shall(A.us)(B.go)to hospital(C.by)bikl?找出错误的一项,订正
jsanbb1年前1
梦回陶塘 共回答了18个问题 | 采纳率88.9%
A.应该为we
3的倍数,一定是9的倍数.______订正:______.
小百威1年前4
kkuv9je8 共回答了17个问题 | 采纳率94.1%
解题思路:此题通过假设,进行推理,进而得出答案;

假设这个数为3n,3n÷9不一定为整数,如当n=2时,即6,不是9的倍数;
9的倍数一定是3的倍数,假设这个数为6m,因为6m÷3=3m;
故答案为:错误,9的倍数一定是3的倍数.

点评:
本题考点: 找一个数的倍数的方法.

考点点评: 解答此题的关键是先进行假设,然后根据进行计算,进而得出结论.

怎么写这两道题,订正答案发现错了,求正确过程和答案(初一平方差公式)
dssf56751年前0
共回答了个问题 | 采纳率
英语高手请进帮忙订正作文数字标记处 是老师画了线的 可能有语法错误 拼写错误 或用词不当。请别改动太大Recently
英语高手请进帮忙订正作文
数字标记处 是老师画了线的 可能有语法错误 拼写错误 或用词不当。请别改动太大
Recently ,our school made a curvey about whether the ①garbage should ②divede into different parts in ③classroom.④A half of student agree to it.They said it could recycle the ⑤source and ⑥make us have a good habit.But ⑦there are 37percent ⑧didn't agree to it.They feel it will bring them ⑨into bother ,and they can (10)hardly change their habit.And the (11)last part of students shows (12)nothing about it。
As far as i am concered,(13)put the garbage into different part is a nici idea to protect our environment.
snowlucy1年前1
巷子深_ken 共回答了20个问题 | 采纳率95%
Recently ,our school made a curvey(survey) about whether the ①garbage should (be) ②diveded into different parts in ③(the)classroom.④A half of (the) student(s) agree to it.They said it could recycle the ⑤(resource) and ⑥make us have a good habit.But ⑦37percent (of the students) ⑧didn't agree to it.They feel it will bring them ⑨worries,and they can (10) hardly change their habit(s).And the (11)(rest of the)students show(12)nothing about it.
As far as i am concered,(13)put(ing) the garbage into different part is a nice idea to protect our environment.
下列各组注音都有一个错,把它找出来并订正 A.粗糙(cū) 倔强(qiáng)卷帙(shì)妥协(xié) B.汲取(j
下列各组注音都有一个错,把它找出来并订正 A.粗糙(cū) 倔强(qiáng)卷帙(shì)妥协(xié) B.汲取(jí)
A.粗糙(cū) 倔强(qiáng)卷帙(shì)妥协(xié)
B.汲取(jí) 渊博(yuān) 炫目(xuàn)灼热(zuó) 
C、尘埃(chéng)大穰(ráng)蒂固(dìgù)篝火(gōu)
D.顷刻(qǐng)耽耽(dān) 犯忌(fànjì)纺锤(cuí)
jeffrey141年前1
adas325 共回答了22个问题 | 采纳率90.9%
A.粗糙(cū) 倔强(qiáng)卷帙(shì)妥协(xié) 倔强( jiàng )
B.汲取(jí) 渊博(yuān) 炫目(xuàn)灼热(zuó)  灼热(zhuó)
C、尘埃(chéng)大穰(ráng)蒂固(dìgù)篝火(gōu) 尘埃(chén)
D.顷刻(qǐng)耽耽(dān) 犯忌(fànjì)纺锤(cuí) 纺锤(chuí)
我要订正!海底奇光 仿写句子——:
我要订正!海底奇光 仿写句子——:
我突然看到发亮的水层中有几道闪光,好像炽热大火炉里的熔铅流,又像加热到白热状态的金属块.运用任意一种修辞手法描写一种光源(日光、月光、霓虹灯光等等)
1351066414701年前1
xwx123 共回答了22个问题 | 采纳率90.9%
我突然看到黑暗的天幕撕开了一条边,奇亮无边,恍惚到了一个光明世界.
错的题目都要抄题订正3遍,老师的做法对吗,算不算罚抄
ygpres1年前1
宋氏姐妹 共回答了17个问题 | 采纳率70.6%
这个就算是处罚了.
下面是“生物组织中还原糖、蛋白质、脂肪的鉴定”实验的材料和部分操作步骤,请对其中的错误加以订正,将错误划掉直接修改即可。
下面是“生物组织中还原糖、蛋白质、脂肪的鉴定”实验的材料和部分操作步骤,请对其中的错误加以订正,将错误划掉直接修改即可。
(一)实验材料:选取红萝卜、新鲜牛奶和浸泡过的花生种子分别做还原糖、蛋白质、脂肪的鉴定实验。
(二)实验步骤:鉴定还原糖时,加入刚配制的斐林试剂,立即观察颜色变化。鉴定蛋白质时,取牛奶样液加入双缩脲试剂A摇匀后再加入双缩脲试剂B,观察是否出现蓝色。鉴定脂肪时,染色后常用清水洗去浮色,然后用高倍镜直接观察临时装片。
liz11011年前1
幽幽浪子心 共回答了19个问题 | 采纳率78.9%
(1)鉴定还原糖的实验材料应该用颜色接近无色的梨等而不是颜色较深的红萝卜
(2)鉴定还原糖加入斐林试剂后还需要水浴加热才能观察到实验现象
(3)观察是否出现紫色而非蓝色
(4)鉴定脂肪时用于洗去浮色的是酒精而不是清水
(5)使用显微镜进行观察时,需先用低倍镜观察,再转为高倍镜
判断题(对的画“√”,错的画“×”并订正或说明理由)
判断题(对的画“√”,错的画“×”并订正或说明理由)
1、一个长方体的长是2米,宽是8分米,高是5分米,那么它的体积是80立方分米()
2、如果两个长方体的体积相等,那么它们的表面积一定也相等()
3、一个正方体的棱长扩大3倍,表面积就扩大9倍()
4、把一个体积为1立方分米的纸盒放在桌面上,纸盒所占桌面的面积一定是1平方分米()
5、从里面量,棱长为4分米的正方体容器,可以容纳64升的水()
qkai0021年前1
yvettelul 共回答了24个问题 | 采纳率83.3%
1.√
长方体的体积=长*宽*高
=2*8*5=80
2.×
设长方体的三条边分别是a,b,c
那么长方体的体积是a*b*c
长方体的表面积是2ab+2ac+2bc
两个长方体的体积相同时,面积有可能不相等
3.×
设正方体的棱长是a
那么它的表面积是6a^2
把棱长扩大3倍变成3a
那么表面积就是6...
订正下列成语中的错字全马之劳走头无路破斧沉舟
相逢何必曾ii1年前5
wangxkj 共回答了18个问题 | 采纳率88.9%
犬马之劳
走投无路
破釜沉舟
六下语文期中考试很烂,老师叫订正,
六下语文期中考试很烂,老师叫订正,
一、找出下列各组中的错别字并改正在括号里,完全没错打
勾:
1、莫名其妙 张灯结彩 零七八碎 蜂拥而至
2、精兵简政 死得其所 天崖海角 鱼贯而入
二、根据意思写词语:
1、一切的事物或景象都变得焕然一新.( )
先给10财富,好了再给20
米兔米兔1年前1
yan8696 共回答了18个问题 | 采纳率94.4%
一、1是完全对的,“其”字一定是没错的,表示其中的意思,不是奇妙的意思, 2中的“崖”应该是“涯”
二、1、焕然一新
三、盈:充满 遂:(不是是逐):就 之:相当于“的”(结构助词)
谁有六年级上册的第七单元的数学试卷?我要订正,
sddinny1年前4
122qw99 共回答了2个问题 | 采纳率50%
发个照片过来,我看我有无我有
高一不等式,杨浦区07年上半学期期中数学卷订正问题.
高一不等式,杨浦区07年上半学期期中数学卷订正问题.
1.若不等式0≤x^+ax+b≤6-x的解集为{x|2≤x≤3或x=6},试求a、b的值.
2.关于x的不等式|x-(a+1)^/2|≤(a-1)^/2与x^-3(a+1)x+2(3a+1)≤0(其中a∈R)的解集依次记为A与B,求使A∪B=B的a的取值范围
这两题的得分为0……
aoke233771年前2
毛二柱 共回答了12个问题 | 采纳率100%
将x=6代入式子得:b=-36-6a
将x=2和x=3分别代入式子得:0=
找出下列句中的一出错误,并订正I'll get stronger and tall soon.
当家的女人1年前1
yuanxiaozhu 共回答了26个问题 | 采纳率92.3%
tall改成talle
请找出有错的一项,并在横线上订正
请找出有错的一项,并在横线上订正
( )_____1、(A、Who) skirt (B、is) the (C、brown)one?
( )_____2、Shall (A、us) (B、go)to hospital (C、by)bike?
( )_____3、What(A、color) (B、is) this scarf?It is(C、an orange).
( )_____4、(A、His) shoes (B、is) too (C、small).
( )_____5、(A、Are) (B、your) (C、free) now?
( )_____6、(A、Is) this your pen?(B、Yes),it (C、is not).
( )_____7、She(A、has) (B、a pair) red (C、socks).
( )_____8、(A、Turn) (B、on) page (C、5).
橘子香1年前1
易莉莎白 共回答了24个问题 | 采纳率95.8%
1 A (whose)
2 A (we)
3 c(orange)
4 B(are)
5 B(you)
6C(is)
7B(a pair of)
8 C(of 5)
找出错别字,并订正,急`~这坐十几宝鼎,集中国古代青铜器艺术之大成,容古代技艺与现代科技于一炉.它的整体结构、艺术造形和
找出错别字,并订正,急`~
这坐十几宝鼎,集中国古代青铜器艺术之大成,容古代技艺与现代科技于一炉.它的整体结构、艺术造形和文化配制,显示了中华民族的优久厉史和灿烂文化.( 快
蔡鸟凯子1年前2
香橙果果 共回答了18个问题 | 采纳率88.9%
坐-座 容-熔 优-悠 厉-历
找出错字,订正.
找出错字,订正.

何时把家回1年前2
风子滑板 共回答了25个问题 | 采纳率96%
五彩斑斓,理直气壮,无的放矢,谈笑风生,毫不介意,震耳欲聋,迫不及待,浮想联翩
找出错字再订正想到铺路人,我内心感到一陈槐疚妄自遵大的像树遥晃着漂亮的枝叶爸爸在执形维护和平的行动中壮列牺牲了
wanglq4111年前1
lazy_bee 共回答了18个问题 | 采纳率88.9%
愧疚 妄自尊大 摇晃
找出下列句子中的错误并订正 Did the watered the flowers on the farm yester
找出下列句子中的错误并订正 Did the watered the flowers on the farm yesterday?
sunning_xu1年前4
迷恋穿衬衣的女子 共回答了20个问题 | 采纳率90%
把the改为you,并把watered改为water.
找出错误的选项,并在横线上订正【 】1.the sign over there are interesting the
找出错误的选项,并在横线上订正
【 】1.the sign over there are interesting the sign是a over there是b are是c interesting是d 【 】
【 】2.now my little brother is one years old ,my little brother 是a is是b years是c old是d【 】
robinzp1年前4
urxtc 共回答了17个问题 | 采纳率88.2%
第一题are错了 应该是is 因为主语是The sign ,over there是介词短语做地点状语,可以不管它
第二题years改为year 因为前面说one了 就不用用复数了
读一读 找出10处错误 并订正We have two foreign student in our class.They
读一读 找出10处错误 并订正
We have two foreign student in our class.They names are Simon and Alice.Simon is an English.But Alice is American.They're twelve.they are in the same row,but different numbers.Simon is Number Six ,Alice is Number Seven.Peter is in we clas,too.He is on duty today .And he isn't here .I think his at home .Miss Brown is us teacher.Her teaches English.She is a good teacher.
wangzhe20061年前2
玲娜0102 共回答了17个问题 | 采纳率94.1%
We have two foreign student(students) in our class.
They(Their) names are Simon and Alice.
Simon is (不加an) English. But Alice is American.
They are in the same row, but (they have) different numbers.
Simon is Number Six, Alice is Number Seven.
Peter is in we (our) clas(class), too.
He is on duty today. And (But) he isn't here.
I think his (he is) at home.
Miss Brown is us (our) teacher.
Her(she) teaches English. She is a good teache
你天天订正作业.你做作业时认真地把作业检查几遍,保证正确.(用关联词连成一句话)
你天天订正作业.你做作业时认真地把作业检查几遍,保证正确.(用关联词连成一句话)
()你天天订正作业。()你做作业时认真地把作业检查几遍,保证正确。(用关联词连成一句话)
词序不可以颠倒
可爱多多多1年前0
共回答了个问题 | 采纳率
找成语中的错别字,并订正惊慌失措( ) 刚复自用( ) 直接了当 ( )
虎耳草素片1年前1
yy10632 共回答了17个问题 | 采纳率94.1%
惊惶失措
刚愎自用
直截了当
下面句子有括号的4个里面有一个括号内的词是错的,请找出并订正
下面句子有括号的4个里面有一个括号内的词是错的,请找出并订正
(1.He)is (2.a) boy.(3.Her)(4.name)is Tony
(1.She)(2.is) a girl.(3.His)(4.name) is English
锦绣江南21年前2
ZHIQIZHI 共回答了15个问题 | 采纳率86.7%
3.His
3.He