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怎么计算时间 没时间算了 求帮! 这个是我在一棵树上折下来的,这是棵什么树,有什么作用吗 研究一棵树的叶面积指数有意义吗 如果人类失去最后一棵树 后果会. 每一棵树都有很大的作用.改为反问句.dsdjknsdsahdsnmagggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg 多种一棵树有啥好处 With the help of the government ,a large number of people survive after the flood in 1991.survive 不是及物吗?应该是 survive the flood 美索不达米亚的幼发拉底河和底格里斯河流孕育了什么文明?如题~ 乌尔城位于________东岸. A幼发拉底河 B底格里斯河 C黄河 D印度河 河流是人类文明的摇篮,古代埃及文明是A印度河的馈赠B幼发拉底河的馈赠C尼罗河的馈赠D底格里斯河的馈赠选哪个? The repairs to the car will cost 500 yuan,________.A．nearlyB．almostC．more or lessD．less or more补充：请问nearly almost 与more or less 的区别. 这道题用柯西不等式,当且仅当的时候怎么算? 一棵树的作用大不大?它可以干多少事情? 一道非谓语选择.You can't just stand by and see our country ____by some people.A attacking B attacked C having attacked D be attacked但为什么D不行,不是有see sb.do/doing? 宇宙是否有外星生命存在? I hope that you have ______ (get) some money.那个横线填什么?为什么那么填? I hope that you have got some money,这是个什么名型,that是怎么用的? I hope that you have got some money我希望你还有钱 这一句里面为什么有that和got求解 "你看我把蜡笔放进盒子里了吧?"用英语怎么说 广泛的爱的心理学定义是什么是包括母爱、博爱、朋友之爱等等的爱,有关于爱的心理学定义吗?爱是什么?或者有哪些关于爱的心理学研究.我知道有一本叫《爱的艺术》,不知道这本书上的内 心理学上的“喜欢是利己,爱情是利他”是什么意思 l hope that you've got some money.句中的that起什么作用?还可以用什么单词代替? I have become happier with people and things,and it _____that people around me have changed,too.填 at work we often have to ask people to do things for us She often （） a cold括号里要填heve 是不是原型? 填空:The tall girl is very famous.She often () on填空:The tall girl is very famous.She often () on television. 谁知道这是什么海底生物?叫什么名字? 用目不转睛这个词语造句 目不转睛的造句? 跌跌撞撞.迫不及待.辛辛苦苦.一声不吭造句,各造一句,一句80字,语句要优美,明天要交啊,,好的有分 怎样保护地球