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.

A.提高劳动效率
B.体现公平正义
C.实现共同富裕
D.提高经济效益

A．去氧糖苷
B．碳苷
C．β-D-或α-L-苷
D．α-D-或β-L-苷
E．硫苷