某有机物的结构简式为，其不可能发生的反应有（） ①加成_爱下问搜题

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问题选择题

某有机物的结构简式为

，其不可能发生的反应有（　　）

①加成反应 ②取代反应 ③消去反应 ④氧化反应 ⑤水解反应⑥与氢氧化钠反应 ⑦与稀盐酸反应．

A．②③④

B．①④⑥

C．③⑤⑦

D．只有⑦

答案

答案：D

填空题

suggestion, laugh, lonely, want, feel, feeling, make, with, tell, at

Beth is a shy girl. Any things can affect her 1 . She often feels unhappy. She wants to 2 friends with her classmates, but she doesn’t know how to talk 3 them. Helen is a nice girl. She often 4 Beth jokes and makes her 5 . Having Helen around her (Helen在身边), Beth doesn’t feel 6 any more. She 7 Helen to be her friend, but she doesn’t know what to do. Could you give Beth some 8 ? Please call us 9 25681089. If you do that, she will 10 better.

判断题

共同犯罪是指二人以上共同故意或过失犯罪。( )