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怎么用纸折爱心?不要网络连接. 如何用纸折爱心 视频 关于 小圆环摩擦力 大圆环拉力 1、如图所示,质量为M的大圆环,用轻绳悬挂于天花板上,两个质量均为m的小环同时从等高处由静止滑下,当两小圆环滑至与圆心等高时所受到的摩擦力均为,则此 北京猿人能看到恐龙吗拜托各位了 3Q Peales tell me something about your father /mother/grandpa/grandma?我说应该用英语怎么样回答.给个句子 I"m sorry to hear that your grandma______(fall) downstairs.按适当的形式填空why? 短语应用:I;m sorry to hear that your grandpa is ___ ___ ___ ___ (生病住院)可不可以是 ill/sick staying in hospital一楼的老兄：in hospital是生病住院，in the hospital是在医院（没有生病，可以是医生大夫护士， This is a horse.变该句为复数形式 马的复数是?horse a woman的复数形式是 Do you have a Chinese today?Yes,I do.哪里错了 求视频:woman的复数形式 woman的复数形式是 1 .－___ you a teacher － Yes ,I __ .2 .－I ____ from China ,and you － No ,I ___ from Ch 写出下列单词的复数 1、Negro（黑人） 2、hero（英雄） 3、potato快 甲乙丙丁四人比赛乒乓球甲乙丙丁四人举行乒乓球赛,每两人赛一场,结果甲胜丁,并且甲乙丙三人胜的场数相同, 甲、乙、丙、丁四人进行乒乓球赛,每两人赛一场,结2果甲胜了丁,并且甲、乙、丙胜的场数相同.丁胜了几场要列式哦 一块梯形菜地,上底18米,下底22米,高40米,面积是 将一块长方形菜地分成ab两部分,且使三角形a的面积比梯形b的面积少18平方米（1）三角形a的面积多少 （2）CE长度 E C10m15m 英语woman的复数形式. 已知:ABCD是平行四边形,对角线AC和BD相交于点O,M,N分别为OA.OC的中点,问BM与DN相 I want to eat something because I am k____ of hungery I am so angry,want to fighting ,Don't amozon 为什么说蝙蝠不是鸟类证据有力,明确.谢勒!急用 大肠杆菌不具有的物质或结构 大肠杆菌不具有哪些细胞结构?详细点~~ l am hungry.i want_to eat._can do 填入something和anything I m hungry.I want to eat a dream.谢`````` It there{ }to eat?I am hungry.是选nice something还是something nice啊 I am still hungry,I want to eat _the egg.A.another B.the other C.otherI am still hungry,I want to eat _the egg.A.another B.the other C.other应是:I am still hungry,I want to eat _ egg.A.another B.the other C.other i am hungry,would you get me __?anything to eat,something to eat,to eat anything,to eat someyhing 为什么蝙蝠不是鸟?说是哺乳动物,是么?