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鸟为了减轻身体重量,前肢退化,_________退化,____退化了?请问kfdear,你的答案正确么? 鸟类有羽毛,前肢变成翼,骨骼中空,（ ）退化 在物种的进化过程中,鲸的前肢和尾巴渐渐变成了鳍,后肢退化了,才逐渐适应了海洋生活.（找出两组反义词） 一个女孩子 叫你去听it is you 有什么特殊含义不如题 It doesn‘t turn clothes yellow. 英国和美国的国旗标志的由来?英国和美国的国旗标志是怎样由来的?各代表有什么意义?...... 使用任何机械都不省功的功是有用功还是总功?十万火急 it is bad for you It is difficult for you to speak English是什么意思 It is usually bad for you,is not it?啥意思 last for ever的意思、 for ever and 有for ever用什么时态 I miss you but i miss you.这句话什麼意思哦?、 I hate missing you,but I love at least having you to miss! 附加疑问句附加疑问句包括反意疑问句和非反意疑问句.那么,下题的空格中是否可以填don't you,也可以填do you?You call this a day's work,________?具体说明区别？ 初中英语特殊疑问句They won't be free this afternoon.He won't play basketball in the park next Sunday.以上两个句子如何改为特殊疑问句.划线部分分别是：this afternoon；in the park learn as a child would learn请帮忙具体分析下该句?这里为什么用would,而不是用will、could或者can? learn as a child would learn请帮忙具体分析下该句的语法现象,我要的不是翻译,我要的是这句子所涉及的语法现象,比如主语\谓语\宾语\修饰语.. 剑7里第一篇大作文有一段话的语法问题:the child would not learn how to exploit and development theirAs with all questions of nature versus nurtrue,they are not mutually exclusive .Without talents the continuous training would be neithe Prime Minister和Premier有什么区别? juse for Many children a_______ after-school clubs. my school is different —— theirs.it has many after-school clubs答案是from,请把这个句子翻译出来. This Is How We Do It Solid base这首歌的歌词谁有啊~ it is prefer to you or me 急 急 急 有首歌叫里面有个女孩先唱"this is how we do it,everybody."然后还是这个女生唱:"da la la la la li dong."还有男生唱rap,也有一个旋律是"o lei o lei o lei ."找不到歌词,请知道的人告诉我下歌词.以及演唱者. 《this is how we do it》歌词 求歌曲this is how we do it 的歌词?急 螯合锌和生物锌有什么区别?哪个更好 there are a lots of trees near the village改错 美语中the ex-prime ministerthe这个句子中是读 thi 还是the 规则讲的是在元音字母前读thi,ex是元音啊,可是在MP3里听到的确实是读the .