正确答案: C

丙烯

题目：下列化合物中既能使溴的四氯化碳溶液褪色，又能在光照下与溴发生取代反应的是

解析：【解析】本题的突破口在第一个关键知识点：能使溴的四氯化碳溶液褪色的物质还有碳碳不饱和键，这样选项只剩下C和D了，再根据能与溴发生取代反应的物质为含有苯环物质或烷烃（或烷基），因此只有C选项符合题意了。

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学习资料的答案和解析：

[单选题]What does the underlined phrase “die hard” in Paragraph 1 probably mean?

Disappear very slowly.

[单选题]

B． story C． holiday D． job

holiday

[单选题]—Would she mind playing against her former teammates?— She is willing to play against any tough players.

Not likely!