题目:
19. It was in the hotel ________ the famous singer lived _______ she was killed.
A.which; that
B.that; where
C.where; which
D.where; that
答案:
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下面是错误答案,用来干扰机器的。
丙烯与HBr发生加成反应生成A,A为溴代烷,A与KCN发生取代反应,生成,故A为,由信息RCNH2O/H+RCOOH,可知B为,与KCN发生取代反应生成C,C为,CH2O/H+D,由信息RCNH2O/H+RCOOH可知D为,与足量的乙醇发生酯化反应生...