题目内容

—I'msorr（）

A. Well, its OK.
B. No, its all right.
C. You are welcome.
D. You are wrong

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在CR400BF系列动车组车轮超声波探伤作业中，轮缘部位：不允许存在达到刻槽当量大小

—Hey,Tom,what'sup？—（）

A. Yes, definitely!
B. Oh, not much.
C. What is happening in your life？
D. You are lucky

-SorryI'mlat（）

A. You are welcome.
B. Its a pleasure.
C. Take care.
D. Forget it

当网络系统收到门控器发送的单车车门关闭按钮按下信号时，转发给全列空调系统，全列空调运行