甲乙两件飞机从同一机场同时起飞方向而行，甲飞机顺风飞行乙飞机逆风飞行。两飞机，无风时速度都是v千米每

雅思口语流程是不是很复杂?谁能教教我? 传授雅思口语写作提分的方法 口语就是雅思么? walk sb词译 walk 这个词怎么发音我想问的是（美式的发音方法） walk美式的发音是读 wa ke 还是 wo ke 更接近与哪个?英式的发音我知道是 wo ke 跟这个音比较相似 我想知道美式的发音 是偏向于 wa ke 美式的 ---___your cousin tall?----No,he____medium height.A.Is;is B.Is;has C.Has;has D.Has;is moustache,too.He is tall and a medium build ,He is friendly,smart,and funny.这句的错误Thank you medium build前跟is还是have/hasShe ____ medium height.A.is B.has请说明理由！ 英语翻译 He _____ a heavy build Now he ()(佩戴)glasses with a heavy build he has a medium build中的“a”可以去掉吗?为什么? 问一道非谓语动词的题I recommend you ___ what he says.A.do B.doing C.to do D.to doing 问一道非谓语动词的题目"Bill,keep the things ____ here secret,will you?"said the manager after the meeting?A.discussed B.being discussed C.to be discussed D.having been discussed老师说答案选A,我选D,可是这不是keep句型中宾补 问一个非谓语动词的题After succeeding in landing on George Island,the captain sent a radio message to his headquarters.这句话前面succeeding是非谓语动词 我想知道这个为什么不能用过去分词 因为过去分词表完成 求救啊,张达人!向您请教一道非谓语动词题The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.（2010浙江）A.being weighed B.to weigh C.weighed D.weighingweigh表示 The driver is hurt.We must spend him to the hospital____.A.on time B.at frist C.at last D.right aw is,he,tall,build,he,ia,medium,of 连成一个什么句子 请教非谓语动词的题目.36 .____ in thought ,he almost ran into the car in front of him .A .Losing B .Having lose C .Lost D .To lose c 错选d33 .The boy wanted to ride his bicycle in the street ,but his mother told him ____ .A .not to B .not 请教几个关于非谓语动词的题目1.____(take) by surprise,the enemy surrendered.2.____(throw) to the floor,the boy regained his footing a few minutes later.3.We have made a point of not ____(attack) unless ____ (attack).4.On ____ (step) out 《 H At Tc .Os As At At Ge Nb .Nb Pu Kr Y Pu Li Os .Zn Li Pu Kr Y U Tl Ag .Ga Os pd PU、PVC、TC布到底所指何物,有什么特性? H At Tc . Os As At Ge Nb . Nb Pu Kr YH At Tc . Os As At Ge Nb . Nb Pu Kr Y Pu Li Os . Zn Li Pu Kr Y U Tl Ag . Ga Os Pd .求学霸翻译!急!化学元素. pu lei ge ruang PU.BR.GY.BK.FS.TL.各是什么颜色 改为一般疑问句并做肯定回答 my sister is tall and heavy 划线部分：tall and heavy 就划线部分提问 noting is impossible to willing a heart ,you are the best mp3 Those children are tall and heavy 对划线部分提问 It is important_________ English.A.learningB.to learnC.having learnedD.to have learnedto learn 我想问下为什么不能用A.learning作主语? combine和unite的区别?最好详尽一点.多谢 生活大爆炸Sheldon:Why are you crying?Penny:Because I'm stupid!这是哪一集