单选题左手定则中,四个手指所指的方向是()。A运动方向B磁力线方向C受力方向D电流方向
单选题
左手定则中,四个手指所指的方向是()。
A
运动方向
B
磁力线方向
C
受力方向
D
电流方向
参考解析
解析:
暂无解析
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