Nowadays, a large number of women, especially those from the countryside, ____ in the clothes industry.

A．is working

B．works

C．work

D．worked

定子绕组是由许多嵌在定子槽内的线圈连接而成，容量大的异步电动机采用（）

A.双层绕组

B.单层绕组

C.三层绕组

D.四层绕组