问题
单项选择题
硫酸铵（）
A．6
B．7
C．8
D．9
答案
参考答案：D
解析：
31022100
搜题请搜索小程序“爱下问搜题”
硫酸铵（）
A．6
B．7
C．8
D．9
参考答案：D
解析：
31022100
| 补全对话：从方框中选择最佳选项完成对话。 | |
Daming: Hello, Jane. There are forty students in our class. Jane: 2 Daming: No, there aren't. 3 Jane: 4 Daming: Yes, there are. Jane: 5 Daming: No, there isn't. But there is one on our teacher's desk. Jane: Thank you. Daming: You're welcome. |