如图,一导体棒 ab 在均匀磁场中沿金属导轨向右作匀速运动,磁场方向垂直导轨所在平面.若导轨电阻忽略不计,并设铁芯磁导率为常数,则达到稳定后在电容器的 M 极板上
A.
带有一定量的正电荷
B.
带有一定量的负电荷
C.
带有越来越多的正电荷
D.
带有越来越多的负电荷
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B.
A real leader always takes action rather
C.
A real leader can finish what they say originally.
D.
Different typos of leaders have different attitudes towards doing things.
E.
A far-sighted leader should praise his employees' work with tangible things to motivate his employees.
F.
Motivating a leader himself is as important as motivating his employees.
G.
A real leader should know how to motivate their employees.
H.
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A.
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B.
Having no one to turn to.
C.
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D.
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E.
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F.
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G.
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