【导读】
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1. [单选题]10kV配电系统的基准电压宜选用()电压。
A. 10kV
B. 10.5kV
C. 11kV
D. 1.5kV
2. [单选题]They have decided to allow us an 18% discount to avoid()another old customer of theirs.
A. loss
B. lose
C. losing
D. to lose