—Doctor, it seems that you like to work with animals.

—Yes, I think animals should _______ our friends.

A．regard as

B．be regarded as

C．be regarding with

D．regarded for

瓷质绝缘易发生闪路是因为（）。

A.瓷绝缘表面光滑

B.瓷绝缘表面易湿

C.瓷绝缘表面污湿