地球第一宇宙速度

10道英语选择题,1.You have to _______ the lace before you can take off your shoes.A.undergo B.underline C.unlock D.undo2.We should _______ advantage of all educational opportunities.A.make B.get C.take D.have3.Cecil can be very rude _______,thou 求英语的寓言故事小学水平 六十秒是一分钟 用英语怎么说 已知向量OA=(3,-4）,向量OB=(6,-3),向量OC=（5-m,-（3+m））1.若点A.B.C能构成三角形,求实数m应满足的条件2.若三角形ABC为直角三角形,且∠A为直角,求实数m的值不要过程和答案,就要解题思路就行. 谢 怎么合并含有定语从句的复合句1、A car crashed into mine.It was red.2、I spoke to an assistant.She had long,dark hair.3、David writes books.They are translated into many languages.4、I was talking to some people.They are friends of yo 已知向量OA=(3,-4),OB=(6,-3),OC=(5-m,-3-m).①若A,B,C三点共线,求实数m的值②若∠ABC为锐角,求实数m的取值范围 合并成定语从句的复合句the english play was a great success.the students acted in it at the new year's party 已知向量OA=(1,1),向量OB=(2,3),向量OC=（m+1,m-1).1)若点A,B,C能构成三角形,求实数m的取值范围2)若在三角形ABC中,角B为直角,求角A 等一分钟的英文 A.How often B.How far C.How long D.How soon的区别与用法 How often How soon How long How far之间有什么区别? 关于A.How often B.How far C.How long D.How soon的区别与用法的练习题 精解How far How long HOW soon How often的用法越精越好 初二上英语周报答案30期（三到五章）新目标的.急.人教新目标的 2011~三到五单元 How soon How long How often的区别要有它们的意思,区别,例句. 3x+2y=7这个二元一次方程有多少个正整数解~肿么算的~ 把下列句子合并成一个含有非限制性定语从句的复合句My brother,Jim,is working in Paris,and Paris is the capital of France.The poor cat lived through the cold and snowy winter.It was beyond my expectation.The factory produces half 如果你爱我,就请你大声说出来的英语怎么写? 将下面句子合并成一个含有定语从句的复合句1the nouse belongs to Mr Smith ,the house faces south2.tom is a friend of mine,i went to the concert with tom3.this is the village,i once lived in the village 4do you still remember the days 如果你爱我,我会改变我自己.翻译英语 你知道我是谁吗 英文翻译 初一至初二上学期所有的以“how”开头的英语短语,写上是什么用法,意思,及在什么情况下是单数或复数形式.最好还能写个例句. 英语词组too often有些作文开头就来句too often,这词组的意义是什么?还有very often... 正比例函数中自变量的次数必须是1吗 英语周报新目标版八年级上第二期答案 如题最好有作文和第二版的题急·! 英语周报八年级新目标浙江专版第二期答案 日行一善小作文,300字,自己看, 日行一善作文500字十篇 超急!还有五天就开学了.要感想和事件.十篇!要不,您自己写一篇也行啊!不要复制的 高中英语定语从句的几个问题1.That evening _____ I will tell you more aboutslater,I endep up working very late.A.that B.which C.what D.when2.By 16:30, ___was almost closing time , nearly all the paintings had been sold.A.which B.w 英语作文,用 How often 采访你的家人RT 有关How often do you exercise?英语作文 几道高中英语题（有关定语从句）1.Is the lab__the foreigners visited yesterday.A.that B.whereC.in which D.the one题目的正确答案是D,但为什么不能用A呢,难道the lab不是先行词吗?that不能作宾语吗?