as well as cell phonesE-mail,as well as cell phones,_an important part in daily communication.A.is playing B.have played C.are playing D.play选啥 为啥

问题描述:

as well as cell phones
E-mail,as well as cell phones,_an important part in daily communication.
A.is playing B.have played C.are playing D.play
选啥 为啥

和手机一样 吧

选A
E-mail 是主语

A
主语是E-mail,单数.

手机也同样