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如何用八角茴香油制取达菲 莽草酸是从香料八角中提取的一种有机物,可用于合成抗禽流感药物“达菲”.回答下列问题莽草酸是从香料八角中提取的一种有机物,可用于合成抗禽流感药物“达菲”.已知该有机物有三种元 The sports meet will be put off till next week because of the bad weather. 2005年禽流感在全球蔓延,百姓谈“禽”色变.目前通过从香料八角中提取的莽草酸制得的达菲是抗禽流感病毒特效药物.下列有关描述正确的是A．高温、紫外线都能使禽流感病毒失去生理活性B Whether we can go for a spring outing ____ the weather.A.depend onB.depends onC.dependD.depends 莽草酸是八角中提取的有机物,用于合成达菲,该有机物由3种元素组成其中氢元素质量分数为5.75%,氧元素质量分数为46%,且每个分子中有5个氧原子求该有机物还含有的一种元素是 .该有机物的相 铁矿化验结果是TFe29,MFe22.70,这个结果是怎样的情况?好不好呢?铁矿样品化验的结果是TFe29,MFe22.70,这结果好不好?是怎样的一个情况呢?劳驾了! 谁知道铁矿石中各元素的分析方法及允许偏差? What is the population of Guangdong?同义句 ___ ___ ___ ___ Guangdong____? When it rains I take a taxi 是否正确 When it rains,I _____(take) a taxi.填什么 It started to rain when I got home.的同义句 It _____ _____ ______ when I got home. 大八角,八角,莽草有什么区别? 比八角茴香多一个角的植物叫什么外形神似,比八角多一个角,不过那种植物是有毒的 八角茴香中莽草的提取分离与含量测定的方法有 The teacher _ the students are talking about is leaving for the United States next week.A.who B.which C.that D.whose选项是A.who B.whose C.whom D.which C语言中的“%6.2f ”, 描写卧室的英语作文（70词左右) Last thursday,we had a class meeting to discuss where go@for our spring outing.We camp up with s...Last thursday,we had a class meeting to discuss where go@for our spring outing.We camp up with several choice@such as going boating,climbing a mountain 如果两组数值差异显著还有必要统计学检验吗 discuss the problem is——— to all the boysA very importance B great importanceC of very inportantD of great importance请问选哪个并说明理由 have a class meeting on Friday _____ there is nothing to discuss.We have a class meeting on Friday _____ there is nothing to discuss.A.unless B.until请讲明原因, 两种实验方法有无显著差异?统计学用什么检验实验结果仅阴性阳性2种,我想正明我的方法和标准方法无显著差异 The _at the meeting will discuss the_ in the world选择题The _at the meeting will discuss the_ in the worldA,present experts;present situationB,present experts;situation presentc,experts present ;situation presentD,experts present ;present situatio 中国在哥本哈根气候大会谈判什么?为什么那么辛苦. He is not as hard-working as his boether.的not as...as用英文翻译 哥本哈根联合国气候谈判 为什么叫谈判 英语翻译He thinks the work of the farm is the most interesting.有没有什么语法错误？这个句子翻译的对不对？ 英语翻译：he is not only hot,he is radioactive. 为什么 碱+酸性氧化物=盐+水 的反应不是复分解反应 欧洲各国的历史为什么和中国不同呢? spring outing帮忙写一篇关于广州动物园的游记