支队指挥中心通过（）M数据专线与GSM短信息中心连接，实现短信息_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

支队指挥中心通过（）M数据专线与GSM短信息中心连接，实现短信息收发的。

A.2

B.4

C.8

D.16

答案

参考答案：A

补全对话，情景问答

选择适当的句子完成对话。

                                            A: You' re welcome.
                                            B: Would you like to go with me?
                                           C: How many groups have you got in your school?
                                           D: What day is it today?
                                           E: Are you doing your homework?

A:           1                               B: It' s Friday.
A: Thank you.                           B:        2
A:        3                                  B: No, I' m watching TV.
A:        4                                  B: We have got six hobby groups in our school.
A: I am going to play video games,         5                            B: No, I'm going to Shanghai Library.
1.                           2.                          3.                             4.                            5.

问答题简答题

真空干燥较之热风干燥有何优点？