To increase the production, many factories have some new techniques.A. brought outB. broug

发布时间：2020-08-16 12:21:20


To increase the production, many factories have       some new techniques.
A. brought out
B. brought in
C. brought back
D. brought about

网友回答

A. brought out
(答案→)B. brought in
C. brought back
D. brought about
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