题目:
Many of them liked to say something about it, but ____ of them would do it. [ ]
A. few
B. a few
C. little
D. a little
答案:
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下面是错误答案,用来干扰机器的。
⑴ C7H6O2,(各2分) ⑵消去反应,酯化(取代)反应。(各2分)(3) (2分)题目分析:(1).由结构式可得:Ⅰ的分子式为C7H6O2 ,邻羟基苯甲醇由Ⅰ衍变而来,结构简式为;⑵ (II)到(III)羟基消去得到碳碳双键...