Jane goes to Paris to spend her holiday ____.

A．each other

B．other each year

C．every other year

D．other every year

真空灭弧室主要由绝缘外壳、屏蔽罩、（）及动静触头等组成。

A.瓷柱

B.波纹管

C.熔断体

D.绝缘管