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- 1七年级下册的英语作文
- 2Joy is a strange girl.She is silent in _____ while she is talkactive in company
- 3已知数列{an}满足a1=2,a(n+1)=2an/(an+2),证明:数列{1/an}为等差数列
- 4山中访友 作者在山中还走访了哪些朋友?仿照下面的句式写话.
- 5(At Mr.White's office in a middle school)
- 6英语39.You said Mary should have telephoned you yesterday.Why _______ she then?
- 7滑轮组起线不是说奇动偶定吗?可是两动两定的滑轮组.应该是从定滑轮起线.可是从动滑轮起线是什么意思 还有二定二动 一动二定 一定二动.分别有几种绕法.每种绕法省多少的力
- 8英语翻译
- 9把We must sell allthese goods.they must have lost your letter in the post.改为被动语态.
- 10带有喜字的诗句