We have lunch in the dining h____every day.
—____(What ,How) colour is it?
—It's red.
关于文学常识表述有误的一项是( )
两只小灯泡上分别标有甲“6V 3W”、乙“4V 2W”字样,现在把它们按不同方式接在不同电路中。下列判断错误的是( )