问题
选择题
苯与乙烯相比较，下列叙述不正确的是 [ ]
A．都能在空气中燃烧
B．苯只能在特殊条件下发生加成反应
C．苯不能被酸性KMnO4氧化
D．都容易发生取代反应
答案
答案：D
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苯与乙烯相比较，下列叙述不正确的是 [ ]
A．都能在空气中燃烧
B．苯只能在特殊条件下发生加成反应
C．苯不能被酸性KMnO4氧化
D．都容易发生取代反应
答案：D
选择短语完成句子。
1. I can't hear the radio clearly. Please _____ it _____ . 2. You look so tired, don't _____ _____ to night. You should go to bed now. 3. Tom is unhappy now. Let's _____ him _____. 4. We should give it to teachers if we _____ _____ something in the street. |