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问题 单项选择题

6502大站电气集中，进路在接近锁闭状态，应能办理人工解锁，待信号关闭后，接车进路和正线发车进路延时（）解锁。

A、10s

B、30s

C、1min

D、3min

答案

参考答案：D

选择题

— Will you give this message to Mr. White, please?

— Sorry, I can't. He ____. [ ]

A. doesn't any more work here

B. doesn't any longer work here

C. doesn't work any more here

D. doesn't work here any longer

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单项选择题 A1/A2型题

女性晚婚年龄为（）

A.19周岁

B.20周岁

C.21周岁

D.22周岁

E.23周岁
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