供电距离越远，输送功率越大，采用的电压等级越低。
A. 对
B. 错
If you don't go to the library tomorrow, _____.
A. neither shall I
B. nor I do
C. so do I
D. neither do I
The bus hit against a tree in the fog and _____ to the deep valley, with ten passengers killed and twenty more wounded.
A. down did it roll
B. down rolled it
C. it down rolled
D. down it rolled
So fast _____ that it is difficult for us to imagine its speed.
A. light travels
B. travels light
C. does light travel
D. has light travelled
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