问题
选择题
风、云、雨、雪等天气现象主要发生在[ ]
A．对流层
B．平流层
C．高层大气
D．电离层
答案
答案：A
搜题请搜索小程序“爱下问搜题”
风、云、雨、雪等天气现象主要发生在[ ]
A．对流层
B．平流层
C．高层大气
D．电离层
答案：A
| 从方框中选出合适的选项补全对话，其中有两项是多余选项。 | |
B: Hello, Sally. 1 A: You did very well in the English exam. My English is not very good. B: 2 A: Oh, I know. May I ask you some questions? B: Of course. A: 3 B: I often read good English books and do lots of exercises. A: 4 B: Yes. He comes from America. He often helps me leam English. A: 5 B: Twice a month. A: OK. Thank you very much. B: You are welcome. |