What is the rule about attendance at lectures
A. It is optional.
B. It is necessary.
C. It is difficult to enforce.
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带电作业需要停用重合闸时,应由变电运行值班员履行许可手续。
What is the discount offered by the exporter
2()
A. It’s five o’clock.
B. I got up early.
C. It is not my fault.
D. The bus was late.