HOw can the man get to the clinic?
A. It is just on the right of the road.
B. It is on the left side of the road.
C. It is just at the end of the road
D. She doesn't know.
查看答案
电压单位是( )。
A
B. V
C. J
D. kW
电流单位是( )。
A
B. mV
C. W
D. F
电位单位是( )。
A
B. V
C. W
D. %
电动势单位是( )。
A
B. V
C
D. kW
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