微电子交流计数电码轨道电路在机车入口端轨面，用0.06Ω标准分路

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问题单项选择题

微电子交流计数电码轨道电路在机车入口端轨面，用0.06Ω标准分路电阻线分路时的分路电流，在非电气化区段不小于（）。

A.1.0A

B.1.2A

C.1.3A

D.1.4A

答案

参考答案：B

填空题

用 award, reward 或 prize 填空。

1. He won the _____ for the best student of the year.

4 . A ____ was given to the person who had the winning number.

3. He received a medal as a( n) _____ forhis courage.

4. He was given a medal as a _____ for his service.

判断题

一台焊机具有无数条外特性曲线。