题目内容

50HZ相敏轨道电路只允许一送一受。

A. 对
B. 错

查看答案
更多问题

轨道电路送电端至轨面需要降压,轨面至受电端需要升压。

A. 对
B. 错

I like playing music and going to ____________ in my Free time.

This weekend I'm going to ________ in North London to see my friends' _________. What do you like doing in your free time?

网络管理系统(OMS)功能是什么?

答案查题题库