Robots ___ some work of human .为什么选A?
Robots ___ some work of human .为什么选A?
A.are used to do B.are used to doing
A.are used to do B.are used to doing
英语人气:710 ℃时间:2020-03-10 03:02:54
优质解答
be used to do sth,被用于做某事
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