快三分钟之内,我要20道七年级上册数学题.谢谢哥哥姐姐们了.

水中仙802022-10-04 11:39:543条回答

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sihaoliang 共回答了18个问题 | 采纳率94.4%
5(2x+5a)-2(10a-2x),其中x=2 a=523+(-73) (2)(-84)+(-49) (3)7+(-2.04) (4)4.23+(-7.57) (5)(-7/3)+(-7/6) (6)9/4+(-3/2) (7)3.75+(2.25)+5/4 (8)-3.75+(+5/4)+(-1.5) (9)(-17/4)+(-10/3)+(+13/3)+(11/3) (10)(-...
1年前
荥水之阳 共回答了2个问题 | 采纳率
什么?
1年前
shellzhang1 共回答了15个问题 | 采纳率
(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(11)(+1.3)-(+17/7)
(12)(-2)-(+2/3)
(13)|(-7.2)-(-6.3)+(1.1)|
(14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(15)(-2/199)*(-7/6-3/2+8/3)
(...
1年前

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居里夫人,参考了:
Madam Curie is a French professor of physics.She was born in Poland in 1867.In 1891 she went to study in Paris University because at that time women were not admitted to universities in Poland.When she was studying in Paris,she lived a poor life,but she worked very hard.
In 1895 she married Pierre Curie,and then they worked together on the research into radioactive matter.They discovered two kinds of radioactive matter-polonium and radium.In 1904 she and her husband were given the Nobel Prize for physics.In 1906 Pierre died,but Marie went on working.She received a second Nobel Prize for Chemistry in 1911.So she became the first scientist in the world to win two Nobel Prizes
怎样写英语简单的自我介绍、三分钟之内的
骑着蟑螂去旅游1年前2
辦公室 共回答了13个问题 | 采纳率84.6%
Hi, my name is xxx. I'm xx years old, a middle school student apparently. I love music very much although I'm not very good at singing. I've been playing guzheng, an ancient traditional instrument for...
1.26*0.87+12.6*0.013的简便运算是?要有式子,好的我给加30分啊!限三分钟之内回答!
razub2cl1年前5
弓长车失 共回答了17个问题 | 采纳率88.2%
1.26*0.87+12.6*0.013
=1.26*0.87+1.26*0.13
=1.26*(0.87+0.13)
=1.26*1
=1.26
有警示的文言文,要超短,有警示,三分钟之内要就可以背完的,
oldpiglovelittle1年前1
下辈子也就这样了 共回答了19个问题 | 采纳率84.2%
黔无驴,有好事者船载以入.至则无可用,放之山下.虎见之,庞然大物也,以为神.蔽林间窥之,稍出近之,慭慭然,莫相知.他日,驴一鸣,虎大骇,远遁;以为且噬己也,甚恐.然往来视之,觉无异能者;益习其声,又近出前后,终不敢搏.稍近,益狎,荡倚冲冒,驴不胜怒,蹄之.虎因喜,计之曰:“技止此耳!”因跳踉大?,断其喉,尽其肉,乃去.——《柳河东集》
如果嫌这个长,还有:
上善若水.水善利万物而不争,处众人之所恶,上善若水
故几于道.居,善地;心,善渊;与,善仁;言,善信;政,善治;事,善能;动,善时.夫唯不争,故无尤.
后一则可能有点牵强,凑合吧.
求爱情小短文,英文的上课要用,在三分钟之内讲完的
依旧如此1年前1
绝对好男士 共回答了16个问题 | 采纳率81.3%
Love makes the world go around.
Love to us human is what water to fish.Love shines the most beautiful light of humanity,we born in it,we live by it.Too often we take it as granted,but we should know love is a priceless gift we should cherish.But how to cherish the love?I have heard a saying :the quickest way to receive love is to give it; the fastest way to lose love is to hold it too tightly the best way to keep love is to give it wings.
It is important for us to learn to love as the first class in our life.Only when you know how to love than you will be a real man in this world.Love brings us warmth in the fearful coldness,love brings us bright when life gets hard and dark.Love brings us confidence toward life when we are tired out and want to give up.
Love deserves all the admiring words,and love is even beyond the life and death.That is what love is all about in my eyes.
散聚的散是什么意思急啊!快,三分钟之内解答,要准确呀
忧郁蓝儿1年前1
thomsen 共回答了10个问题 | 采纳率90%
分开,由聚集而分离
材料:一个普通硬塑料袋~一个打火机~如果把塑料袋里装满水,用打火机烧它,三分钟之内塑料袋会破吗?水会流出吗?
elysi1年前2
baggio2117 共回答了11个问题 | 采纳率72.7%
答:不破,也不会流出来.(实验步骤略)
某种电视机降价了第一次比原价8000元降低了10%第二次又降低了10%这种电视机现价()元要有过程三分钟之内
winner81年前1
oyang211314 共回答了13个问题 | 采纳率92.3%
8000*(1-10%)(1-10%)=6480
论电视就是以“论作业”和“论电视”为题,写两篇演讲稿三分钟之内的,适合高中生的是你自己写的吗?我没时间仔细看了,马上就背
论电视
就是以“论作业”和“论电视”为题,写两篇演讲稿
三分钟之内的,适合高中生的
是你自己写的吗?
我没时间仔细看了,马上就背了^_^
还有一篇“论勤奋”不要下面这篇
On Diligence
It is the duty of every man to work.The life of a lazy man is of no use to himself and to others.The man who is too lazy to work is the man who's generally most ready to beg or to steal.Every boy when he is young should learn some useful work.
……
这三个是备选的,到时候老师随便抽一个......
metro_111年前1
欧高 共回答了13个问题 | 采纳率92.3%
说清楚点!
论作业的来拉啊!
It is very important to know the right way of study.The homework is one of these ways.Home works are some exercises according to what we learn in the school.We can be familiar with our study through doing lots of exercises.However,if we are already familiar with this knowledge,it is not necessary to do such kind of practice.We can study more freely if our homework is less.
So,I think we need to do some homework,but don't want so much!That is all !Thank you !
你慢点讲就有三分钟拉!
论电视的 :
In present days,almost everyone likes to watch TV programmes,and so do I.
I think that watching TV can make my views broad,and I can learn a lot of knowledge from some TV programmes.
I like to watch sport games,and talk shows on TV.
What about you?
I think we are in the age of learning,so we must put the study at the first place.
However,when we have spare time,we can also relax ourselves by watching TV.
I think that would be wonderful.
This is my speech today!
Thank you for listening!
可以不?是的是的,我刚写的,看没有错别字吧?
你慢点念!就有三分钟了!
你怎么不早点讲?
你写的勤奋怎么不行啊?
On Diligence
Diligence?You may ask me what is diligence?Easily speaking,it is working hard!
Working hard is easy said than done.
I always said to myself:you must work hard next term!
But when I really get into the next term,I may not work as hard as I have thought.
So,I think it is difficult to work hard all the time.
However,if we want to be successful in the future,we have to work hard now.
At last,I want to say:I can't promise I will work hard from now on,but I will try to work hard at this moment.
Thank you!
可以了不?
还有米有演讲?
你一个人怎么做这么多演讲啊
1+2+3+4+5+6+7+8+9+10+12+13+14+15+16……+100=?三分钟之内回答正确者高分釆纳!
灰朦的天空1年前1
芒果与番茄 共回答了18个问题 | 采纳率94.4%
5050
甲数是七分之二,乙数是十五分之十四,甲数比乙数少多少?算式!三分钟之内!
meijie7911061年前2
ikikic 共回答了18个问题 | 采纳率88.9%
甲数比乙数少多少?就是用乙数减甲数呗
即:14/15-2/7=98/105-30/105=68/105