漏电保护器后方的线路的零线只允许连接()线。
A、用电设备的工作零线
B、PE
C、PEN
D、地
参考答案:A
I am a fan of Liu Qian. _____ his magic ________ his humor attracts me.
A.Both… and
B.Either…or
C.Neither…nor
D.Not only… but also
He to wait for half an hour because of the bad traffic.
A.tells
B.told
C.was told
D.asked