挑战习题
1/5单选题
难度:

1.

关于电压表所测对象,以下判断正确的是(       )


A

电压表V1 测电源电压

B

电压表V1 测电路所有用电器的电压

C

电压表V1 测电源与灯L1的电压

D

电压表V1测灯L2的电压

提示1:
PHA+55S15Y6L6KGo5LiO5b6F5rWL55S16Lev5bm26IGUPC9wPg==
提示2:
PHA+5Y+v55So5Y675rqQ5rOV5Yik5patPC9wPg==
正确答案:RA==
PGRpdj7oi6XnlKjljrvmupDms5XliKTmlq3vvIzpppblhYjlsIbnlLXmupDljrvmjonvvIznnIvnlLXljovooahWPHN1Yj4xPC9zdWI+5LiO5ZOq5Lqb55So55S15Zmo5p6E5oiQ6Zet5ZCI5Zue6Lev77yM55S15rqQ5aSE5LiO55S15Y6L6KGo5aSE55u45b2T5LqO5pat6Lev77yM57uP5Yik5pat5Y+v55+l55S15Y6L6KGoVjxzdWI+MTwvc3ViPuS4jueBr0w8c3ViPjI8L3N1Yj7mnoTmiJDpl63lkIjlm57ot6/jgILpgInpoblE5q2j56Gu44CCPGJyPjwvZGl2Pg==