问题
选择题
下列关于卤代烃的叙述正确的是 [ ]
A．所有卤代烃都是难溶于水，比水重的液体
B．所有卤代烃在适当条件下都能发生消去反应
C．所有卤代烃都含有卤原子
D．所有卤代烃都是通过取代反应制得的
答案
答案：C
搜题请搜索小程序“爱下问搜题”
下列关于卤代烃的叙述正确的是 [ ]
A．所有卤代烃都是难溶于水，比水重的液体
B．所有卤代烃在适当条件下都能发生消去反应
C．所有卤代烃都含有卤原子
D．所有卤代烃都是通过取代反应制得的
答案：C
| 阅读理解。 | |
Bin went shopping in Chongqing one day. Here is the receipt (收据).
| |
| 1. Quandu is a _____ in Chongqing. | |
| A. school B. shop C. hospital D. room | |
| 2. When did Bill do the shopping? | |
| A. On May 6. B. In the afternoon C. On May 17. D. In the evening | |
| 3. The sweater was _____. | |
| A. ￥60 B. ￥120 C. ￥150 D. ￥200 | |
| 4. Bill bought _____ bags. | |
| A. 1 B. 2 C. 4 D. 5 | |
| 5. Bill paid _____ for all the things. | |
| A. ￥120 B. ￥200 C. ￥300 D. ￥620 |