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【简答题】
信号机无效标为白色的十字交叉板。色灯信号机的无效标装在机柱上,色灯信号机的无效标装在信号机构上信号机的无效标装在臂板上。
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皮皮学刷刷变学霸
举一反三
【单选题】在通信线路施工时，以下不符合杆滑板（吊板）作业安全注意事项的是（）。
A.
在钢线周围100CM范围内有电力线时，禁止坐滑板作业
B.
7/2.0以下的吊线上不准使用吊板（不包括7/2.0）
C.
坐吊板过过电杆时允许爬抱而过
D.
坐吊板时，必须扎好保安带，并将保安带拢在吊线上
【单选题】--- Excuse me. Could you tell me ___? ---Sorry. I have no idea, either.
A.
what wrong is with him
B.
What the matter is with him
C.
what was the matter with him
D.
what is the trouble with him
【单选题】A: Excuse me. What subway station am I in? I got lost. B: ______
A.
How could you be so thoughtless?
B.
This is a subway interchange station.
C.
Fancy meeting you here.
D.
We can go together.
【单选题】Excuse me. Would you please tell me ______ buy a digital camera? [ ]
A.
what to
B.
where to
C.
what I can
D.
where can I
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