The latest major disaster that occurred in Zhejiang paralyzed traffic, caused blackouts and ______ water supplies for days.

A．cut down

B．cut off

C．cut up

D．cut out

杀虫止痒可用的药物是( )

A．茵陈蒿
B．篇蓄
C．木通
D．薏苡仁
E．萆薢