一半径为R的带电球体，其电荷体密度分布

怎样写一片关于戒烟的作文?从哪方面写起? 关于戒烟的作文 如何戒烟的作文是一篇看图写画,一共有四幅图 We hope he will _(成功) pass the test Pupils who pass the test will be ________ to the next grade.A) promoted B) proceeded C) progressed为什么选择A 不选B,不是有继续前进的意思么 have you got an elephant翻译成汉语是什么意思 我为爸爸戒烟 作文 400字 急啊啊啊啊啊 急啊啊啊啊啊 the yellow kite is my twin brother's 划线提问 划线my twin brother's （）（） the yellow kite. 就划线部分提问 I would like a square cake.———横线在square下面 the yellow kite is my twin brother's. 对my twin brother's 提问 _____ _____ the yellow kite? 急急急 l would like _a_square_cake_（对画线部分提问哦） What()of the cake would you like?A square cake,please touch sb on the pat sb on the head怎么理解? 英语翻译工程部 物资部 英文怎么翻译 She'd like a round cake.划线的是roud,提问 me like eat cake mpther to组句 Oh,my friend Alice was about 100 metres _________me.A.nearB.beforeC.behindD.betweenThere I bought something for my sister but nothing for _____ in the gift shop.A.herselfB.myselfC.himselfD.ourselves The most important Future.. 什么意思?未来最重要 用英语怎么说? 英语读后感500—1000单词.自己写哦.最好说明一下看得是什么. ________ the right decisions _________ the future is probably the most important thing we’ll ever do in our lives.A.Making; concerned B.Make; concerningC.To make; concerned D.Making; concerning请问第二空concerning能不能改成concened with? making the right decisions concering the future is probably the most important thing we’ll ever do in our lives.这里为什么要用making 和concering两个分词形式? 如果一只鸟能飞1000米高,那么它在1000米的高山上能飞多高?(相对海平面位置） What's wrong with the sentence?Only two kinds of animals can arrive the piramid tower,hawk and snail.the piramid top...打错了 What is wrong with the sentence?Time is like water,always keeps silence.If you are well,my life is full of sunshine. 英语翻译Management is the process of designing and maintaining an environment for the purpose of efficiently accomplishing selected aims.The goal of all managers is to create a surplus and to achieve a favourable output-input ratio within a speci it true 我从30米高的地方跳下,落地时的速度是多少?我忘记公式了 This article is much easier than that one. do this step by step because a big dreamdo this step by step because a big dream is grouped by,in fact,many small a sick person的复数. person用于复数吗?no后加单数还是复数?