【单选题】【消耗次数：1】
按次序规则，下列基团中最优先的是：
①
—CH2Cl
②
—C(CH3)3
③
—CH2NH2
④
—CH2OCH3
参考答案：
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【单选题】
判断 ①(CH3)3CCH2Cl ②CHCl2—CHBr2在KOH醇溶液中加热（ ）。
①
①不反应，②反应
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