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【单选题】
标准雷电冲击电压波形是( )。A.
1/10 μ s
B.
1.2/50 μ s
C.
100/1000 μ s
D.
250/2500 μ s
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【简答题】工作人员工作中正常活动范围与带电设备的安全距离是多少？
【简答题】工作人员工作中正常活动范围与带电设备的安全距离是如何规定的？
【简答题】电压等级在10kv及以下时，工作人员工作中正常活动范围与带电设备的安全距离为()。
【单选题】--____________? --I’d like to see that red dress.
A.
What can I do for you?
B.
Do you want anything?
C.
What do you like?
D.
What will you do?
【单选题】听力原文：If you can't do better in this course, I'm afraid you will have to drop it. In which case will you have to drop the course?
A.
If you are constantly absent.
B.
If you cannot improve your performance in this course.
C.
If you don't spend enough time on the course.
【简答题】—______________ —I want to buy two 50fenstamps. A.Is there anything I can do for you? B.What do you want to buy? C.Do you want to buy stamps or envelopes? D.What are you looking for?
【简答题】在靠近带电部分工作时，工作人员工作中正常活动范围与带电设备的安全距离10kV应大于0.35 米，220kV应大于()米。
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