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我在安装xp不知道产品密ying!求个能用的密ying Why has this proved difficult?请问这句话的成分,difficult修饰什么词 关于对句“不要让时间磨灭信念”有没有相似,或者对丈工整的句子? Why has this proved difficult? 主语是? this 是什么?difficult? 《极地快车》的英文观后感请各位大哥哥,大姐姐们帮帮忙,明天早上就要交了,求你们了! it is a bit confusing when Jack ask such questions from Mike as what is the difference between love and fondness这句话it是什么用法啊,想来想去这个it不知道怎么翻译 Film has a much shorter history,especially when D such art forms as music aFilm has a much shorter history,especially when_ such art forms as music and painting.A.having compared to B.comparing toC.compare to D.compared to When sample is free, how is VAT calculated for the samples? thanks当样品免费时，对于样品，样品的增值税该如何计算？ 谢谢。 在上海,商务英语初级有用吗?去上海找工作,最好考初级还是中级证?在上海什么工作好找?我学的是计算机科学与技术,但学的不好,从事的是建筑行业.但我是成教的本科学历,在上海能找什么样 Shan't / shouldn't We needn't get ready yet;the guest ______ come for another hour.A.shan'tB.shouldn't最好再归纳一下它们的用法与区别! 作文：带走——留下——应该填什么词比较好写,没有思绪和题材啊 带走的和留下的的作文 带走____,留下_____的作文 作文：留下（ ）,带走（ ） 带走什么 留下什么 作文500字左右最少500字左右 求对句! 연구용 로켓 （1）by,would,my,like,drop,house,you,to (2)relaed,students,pretty,this,rules,in,school,have 海日生残夜 江春入旧年赏析 적으로是什么意思?词性是?怎么用? has been proven to be wrong能不能改成.Gul said the claims are "preposterous" and "totally false," and cautioned that the CIA has been proven to be wrong about intelligence in the past.能不能改成“CIA has proven wrong about intelligence in Up to this day this doll has always been a precious possession to Margaret ,because it is always a nice memory of what loving parents she has had .翻译一下句子 学了本学期的课文,我认识了不少人物:有( )的文学家莫泊桑,有()聂将军,有( )扫路人 berore it gets better的下载有下载网址的话直接发网址. 怎样提高阅读水平啊?我做BEC高级阅读的时候,阅读水平差到极点,崩溃啊要! BEC的阅读能力如何提高?多读一些什么较好呢? 有什么能提高bec（中级）阅读的好书呢 i did it什么意思 my father and mother_____(be)in habei for ten years Do't worry ,I am OK I'm ok can do everthing什么意思 She often lets her children play in the garden on sunny