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杠杆：当人从弯腰状态变为直立状态的过程中,人的上身属于什么杠杆?问一下·是属于省力杠杆还是费力杠杆还是等臂杠杆·请帮忙告诉答案·然后说明一下支点,动力作用点及方向,阻力作用点 go straight along 和go straight head 有什么区别啊 最好举个例子 DO you have a t_____for the dolphin show? 谁知道五星红旗的由来? 请各位GG、MM介绍一款智能手机.（只限于WM和谷歌系统）最近 一直介于谷歌系统和 WM 系统的选择之间,难以抉择.请各位为我介绍一款智能手机,2000以下的就行,品牌不论.S900除外. We went to Ocean Park Hong kong and ( )[watch] a dolphin show 怎么填 请翻译一下“春往冬反,迷惑失道”呗,mm们~ MM上海哪有卖VOSS矿泉水的 五星红旗的来历羡慕 the building was named after the famous scientist.为什么用after? 五星红旗的来历短一点,要50字 submarine had sunk 108 metres to the bottom of the sea.这里为什么用to 哪里有关于纪晓岚生平的一些英文介绍呢? she had sunk more ships during the war than any other submarinenew concept english uint3 instructions example中的一句话,submarine不是可数名词吗,为什么后面不用复数啊? Even Though You'Re Gone 歌词 2010.12四级试卷 aspect High-Aspect-Ratio TiO2 是什么类型的二氧化钛啊? Go to hell这句英语翻成中文是什么意思? aspect 飞机总体设计中 mean-wing t/c ratio "watch up"翻译成中文是什么 The work is not easy ______.A.doing B.to do C.do D.does Wild animals abound in this area.This area abounds in wild animals.这两句话是一样的意思,请问为什么第二句里面的abound后面要加s呢? The maughty boy is so c_____ that he often forgets his schoolbag . latter与later的区别 later和latter有什么区别?什么时候用later，什么时候用latter？ We can see seven thirty show in the eveningWe can see (seven thirty) show in the evening__________ _____________ can you see in the evening理由 They saw_the seven thirty _show in the evening.(画线提问） Corporation与company有什么区别? the art of making paper 怎么翻译 have do play sing eat go call give come feel改成第三人称单数还有过去式