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A．坐骨神经
B．股后皮神经
C．臀下神经
D．阴部神经
E．阴部动、静脉
A.①②③④⑤⑥
B.①②③⑤⑥⑦
C.②③④⑤⑥⑦
D.①②③④⑤⑦
A．The
mass of one of the particles doubled.
B．The
charge on both particles doubled.
C．The
charge on one particle was halved.
D．The
distance between the charges was doubled.
E．The
charge on one particle was quadrupled, while the other was halved.
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