高一物理选修3-1作业本答案

Open you mouth ,please.改为否定句 am is are was were作为助动词时,后面的谓语动词还是原型吗.还有have has呢? have属于什么动词?谓语动词?助动词?请解释一下谓语动词和助动词以及实义动词的用法和什么意思 英语中助动词是不是谓语动词 助动词,谓语动词助动词能做谓语动词么?比如 have,is ,was.After he had finished his homework ,he went home.比如句中的had 和 finished 都分别算哪种成分呢？ bharal skin hydraion什么意思 skin picking是什么意思 This npair of chopsticks is made of ivory,_____ ______? some friends have.opposite.views.andsome.like.the.same.things请问可以换成BUT么,还有后一个SOME是指代sommefriends么 I first met Lisa thhree years ago when we ___at a radio station together.A.have worked B.had been working C.were working D.had worked I first met Lisa three days ago when we _____at a radio station together.A.have worked B.are working C.were working D.worked the chair_____which he is sittingis made of wood.give me the book ,the cover _____which is red The chair is made of wood..He is sitting on it now（将上面的句子改为含有定语从句的句子）The chair ________ _________ he is _____ now is made of wood 皮肤的发生层细胞是什么 请问该怎么理解“细胞”这东西?为什么会出现细胞?细胞怎么样产生皮肤等器官?怎么办?就是入不了生物的大门…不知道细胞是什么,不知道为什么小小的细胞里为什么会有那些元素…该怎么 这个男孩在学习英语上有困难.The boy _______________________English. 【高一英语】____time went on, what our teacher said proved true.A.AsB.SinceC.With D.Because答案是A ,C为什么不行呢? 发音标[C]的单词要二十个,我代表八辈祖宗感谢您!今天晚上就要了,1 这个单词怎么读?发音标过来呗! Not you but I am wrong/ Nobody but I is wrong.能给我解释一下这两个句子. I think I am wrong.But I want to try again. skin refiner是什么意思 皮肤软组织感染是什么意思? i m always getting over you apple中的/pl/怎么发音,是不是“噢",还是要发/l/的音 Skin Recells翻译成中文是什么? skin是什么意思? 改善皮肤有什么意义和作用? —___ doesn t always happen as we expect.—Really!So we mustn t take the impossible things as our aims in case that we might be disappointed in the future..为什么答案是 everything ,而不是 anything很着急 用 anything 不是可以翻译 we mustn't break the (r ) in our school1 we mustn't break the (r ) in our school 2 if we want to learn english well ,we must practise (s )it first we won't elect him our monitor because he doesn't always observe the regulations,____setting a good example to the others.let alone/not to mention?我觉得两个都可以,答案是和not to mention请问let alone 有什么错?谢谢啦~~