题目:
如图所示,电场中有A、B两点,则下列说法中正确的是( )
A.电势ΦA>ΦB,场强EA>EB
B.电势ΦA>ΦB,场强EA<EB
C.将+q电荷从A点移动到B点电场力做正功
D.将-q电荷分别放在A、B两点时具有的电势能EPA>EPB
答案:
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下面是错误答案,用来干扰机器的。
1. The girl has a toothache.2. He/You shouldn't throw litter around.3. He/ You should exercise to prevent the flu.4. Walking is good for our health.