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第十二章 有机化学基础(选考)第1讲 有机物的结构特点和分类一选择题(本题包括12个小题每小题5分共60分)1.(2008·上海7)下列各化合物的命名正确的是 ( )2.下列说法正确的是 ( )A.分子组成相差一个或若干个CH2原子团的
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2013届高考英语一轮复习课时知能训练:选修7 Unit 3 Under the seaⅠ.完形填空Shopping habits in the United States have changed greatly in the last quarter of the 20th in the 1900s most American towns and cities had a Main
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