Many towns and villages had their water supply       because there was no electricity.   [ ]

A.  put through

B.  cut down

C.  cut off

D.  blown down

根据《民法通则》的规定，______不是委托代理关系终止的法定原因。

A．代理人死亡
B．被代理人死亡
C．代理人丧失民事行为能力
D．被代理人取消委托