对外汉语作业

选择The water is too lot____(A.to drink B.to be drunk C.to be drinked D.for drink) ( )has been done to prevent the water in the lake from being pollutedA,little B,few C,other D,many The water is not fit to drink为什么不用to be drunk? 已知|a+b-c|+|b-1|=-|2-ab|求1/abc+1/(a+1)(b+1)(c+1)+1/(a+2)(b+2)(c+2)+……1/(a+97)(b+97)(C+97)= 已知abc满足a+b=5 c=ab+b-9求c的值 There is nothing secretive about the Ombudsman's work.这句话中为什么加about,什么作用? 在△ABC中,∠C=90°,∠A=30°,AB=10,求△ABC的面积 如图,△ABC中,∠C=90°,∠A=30度,CD⊥AB于D,AB=4,求CD的长及△ABC的面积. 在△ABC中,∠C=90°,∠A=30°,AB=6√3cm,求△ABC的面积 He doesn't know the m____ of the word. she showed us how to operate the machine翻译 英语翻译原句是:To reach more people in the community ,some AIDS educational programs operate out of a beauty shop. the problem is (how) we can( operate) the new machine( on) such (a) short time.英语挑错,括弧中的,为什么? I n___ that Miss Green wasn't happy this morning Green very happy Miss looks 连词组句 问一个字和它拼音~有句话是：朋友的( )绊 忘记了.有没有知道的?字和拼音. Rare animals are good friends of_______(we).It's important for _________to read more books.(learn)Thank you for ________me to your party.I got your _________two days ago.(invite) He wanted to see one of his friends there.这句话wanted to用了过去形式,see也是动词,为什么see不用过去式 is字母组成单词 is加个词,要3个字母的词如；all改成call.快地我顶 miss white left shanghai a week同义句MISS white（ ）（ ）（ ）shanghai （ ）aweek 可以这样翻译'he is siting on the edge of chair read book'他正坐在椅子旁边看书拜托了各位 I found him sitting in his chair,completely _____a magazine.A.absorbing B.being absorbed in C.absorbed in D.absorbing in their friend is (reading a magazine)on the chair.(对括号里提问理由） 19._________comfortably in a chair,he was completely lost in a magazine20._______ comfortably in a chair,he was completely lost in a magazine.A.To sit B.Sat C.Sitting D.Having sat 以A nice weeked写英语作文 difference in difference estimator是什么意思 the difference in 与 the difference of 的区别?查剑桥英英字典的 difference 的词条,有例句：1.We'd like better seats,but if the difference in price is too much,we'll keep what we have.2.There was a difference of opinion about the best a difference-in-differences analysis什么意思怎么翻译啊,经济学中的术语 前面说的是挪威和丹麦关于格陵兰岛和另一岛屿达成了一个协议,但是Later,in the suit between the two countries over which had sovereignty over Greenland.这句应该是说后来两国对格陵兰岛都主张享有主权,in the 翻译： It covers five and a half million square kilometers of the Amazon Basin and翻译：It covers five and a half million square kilometers of the Amazon Basin and spreads across nine countries . Do you want this kind of robot?怎么回答? There's something wrong with my mobile phone.I'm going to get ( )a new one.A.I B.my C.myself D.mine 一定要说原因哦~