题目

有机物A的结构简式是,它可以通过不同的反应得到下列物质: B.                C. D. (1)A中官能团的名称是:                                         。            (2)写出由A制取B的化学方程式:                                    。                  (3)写出A制取C、D两种物质的有机反应类型: A→C:                                            A→D:     We hope ______ hard at his lessons now.A. he to work B. him to workC. to working D. he can work
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