高压输电线路的故障，绝大部分是（）故障。
A、单相接地
B、两相接地短路
C、三相短路
D、两相短路
参考答案：A
-----The old man wouldn’t stay at home for a rest even if it rained.
---- . He would feel sick if he stayed home for one day.
A．So would my grandpa
B．So wouldn’t my grandpa
C．Neither would my grandpa
D．Nor wouldn’t my grandpa
链霉素（）
A.可引起外周神经炎
B.可引起视神经炎
C.有流感样症状
D.可引起耳鸣，耳聋
E.可引起关节疼痛
