The purpose of training (qualify) ____teachers for those mountain areas is worthy of praise.
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He is a young man full of (progress) ____ideas.
His children are prevented from (play) ____outside on the street.
All these worries made it impossible for her to(concentrate) ____on her work.
习近平总书记指出，做好民族工作最关键的是搞好民族团结，最管用的是（）。
A. 宣传教育
B. 法律约束
C. 争取人心
D. 政策管控
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