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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:必修二 Unit 5 MusicⅠ.完形填空I had arrived at the airport about 30 minutes before the check- had been a very __1__three days for me with lots of I was glad to have the __2__time to make
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