Robots ___ some work of human .为什么选A?
问题描述:
Robots ___ some work of human .为什么选A?
A.are used to do B.are used to doing
答
be used to do sth,被用于做某事
Robots ___ some work of human .为什么选A?
A.are used to do B.are used to doing
be used to do sth,被用于做某事