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糖,核苷酸代谢中产生atp的场所 29 嘌呤核苷酸从头合成时生成的重要代谢中间物是 请翻译net of validated expenses 核苷酸形成核酸所发生的反应 谁能告诉我核苷酸的代谢途径啊还有人的最终产物是尿酸吗?不是尿素吗?为什么《生物化学》上讲人的核苷酸的代谢产生的尿酸不能分解为尿素啊,人的尿中不是没有尿酸吗? 关于‘i have been coming to beijing for fourteen years’这句话的中文意思的疑问为什么是‘过去十四年间我经常来北京’?have been doing不是表示一直延续可能没有完成吗?还有就是为什么是‘过去十四 核苷酸的合成代谢有两种途径分别是 have been coming 后加了for weeks 是错了?I've been coming up here night after night for weeks coming是不可以加for 表示段时间的 因为他是瞬间动词,书上写错了?我知道 但是coming是瞬间动词 可以表示将来,但是不 many和much的用法 much和many怎么用? 怎么翻译'a healthy breakfast means a healthier diet and it can hlep people not to be too heavy" 山中访友中作者有什么感想额确认日 wespent three hours walking aroud the pa rk < 该为否定句) 同义句We spent three hours walking around the museum.如题,给的是___ ___ us three hours ___ ___ around the museum. where引导状语从句和名词性从句在介词使用方面的问题where引导状语从句,主句和从句中的不及物动词后面还需要加介词嘛,是I live where they live.还是I live in where they live in.where引导名词性从句,从 Alice felt very tired after she worked for ten hours(保持原意)Alice felt very tired____ ____ for ten hours she felt very__ after three hour's walk. 填入适当的形容词或副词 The highest mountain pass in Europe is _______.answer1,at 2000 metres highanswer2,2000 metres highwhich answer should i choose?why?(不是作表语的既可用名词,也可用介词短语吗) you can s--- three cats in my house 新概念的英语900句怎么样 新概念2和英语九百句怎么样?要是都背过能和老外交流吗 I got many chances talking with them还是to talk with them Don't Go Away这歌怎么翻译?如题 i wanna thank youfor giving me time to brethe是男人百分百里的一首插曲的歌词、那位可以帮忙找下、谢谢 日常英语900句分业写清楚,最好带上翻译. 我要英语900句前315句我已经有了,应为打不了超过10000字,大家再提供些. 求英语900句mp3版,的和文档版的,最好是有英文有汉字解释的…… 英语900句哪里有呢 要英语900句 we don't have any classes on weekends.class为什么要用负数,用单数不行吗 They don’t have any classes on weekends.这里的any可否翻译成“任何”,这句话如何翻译? it will be very cold and windy as there there is astrom that has lasted for 300years and doesn'tappear to be stopping.be stopping 为什么呢.怎么不是stopped?