多边形的边长计算公式

rDo you mind if I sit here?（ ）.It'sformr.brown.A.not at all B.never mind C.better not D.of co 对外汉语教学怎样上好中级口语课? 本人最近在给汉语口语比较好的韩国人上课他21岁,只是不知道应该怎么上好这堂口语课,我们上课就是练习口语 10句关于Friend ship 的名言谢乐最好有中文翻译 满意的用英语怎么说 满意的英语怎么说 “读书”为主题的名言警句 最好多一点xiexiela have an opportunity什么意思谢拉 I have an opportunity翻译成给我一个机会对吗? 英语翻译do i have an opportunity for you? I will have an opportunity ______(do) it. 请问英语请问,I have hade a beautiful card by myself ,It was a present which for my foreign friend请问,I have hade a beautiful card by myself ,It was a present which for my foreign friend .I made a purple card for her because she loves purple. 4.A:------------ （要不要我来）pick you up?My friend ---------------------------在计算机行业工作） 21504—（张）the debate is to be held after this class,i hope every one have made full preparation.3781 想问：1—为什么是the debate is to be held after this class 而不是 the debate is held after this class. only Remember only remember [You] ` ` ` ` 我和我男朋友分手之后` 他给我的留言` ` ` Only Remember You ＞＞ ,only remember Only Remember ,求一首英文歌曲,是英文课本里的,叫manners 歌词如下：you can pick your guitaryou can pick your toes ,you can pick your banjo,you can pick your noes. I don't have the k_____to the classrom Everybody ________ in the hall where they were welcomed by the secretary. anyway i hope you can remember i waiting for you Unhappily Live When Will This World End?.The Pain I Feel Inside.Never Surfaces,Never Shows.I Keep My Emotions Hidden.Have Too Many Scars To Heal.Save Me From Death.But Don't Keep Me Alive .Looking Back To The Past.Hurts Too Much to Bare.Was He There. This situation will never shift 是什么意思 pick you up 后接什么? you've got it right taken 与be taken的区别No books or magazines are allowed to（take）＿＿out of the reading-room.空里应该填be taken为什么不能填taken呢?他们俩不都是表示被动么?为什么要加个be呢? 翻译：1 we don't have any milk.2 how many bottles?3 six bottles we don t have any milk 新概念第164页ab练习题 pick you up和dress you up和bring you up和give you up有什么区别 my father will tell me a story to me this night这句话有何错误?请指出并改正写错了应为my father will tell a story to me this night