问题
选择题
To increase the production, many factories have some new techniques.
A．brought out
B．brought in
C．brought back
D．brought about
答案
答案：B
搜题请搜索小程序“爱下问搜题”
To increase the production, many factories have some new techniques.
A．brought out
B．brought in
C．brought back
D．brought about
答案：B