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人际关系的结构

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无粘性土坡在稳定状态下(不含临界稳定)坡角β与土的内摩擦角φ之间的关系是()

A. βφ
B. β≤φ

班集体建设的基本方法有( )、( )、( )、( )。

When working with lumber, wire and staples are not desirable to be used because().

A. they are not subjected to cause trouble
B. they are difficult to handle this kind of cargo
C. the efficiency of separating is raised
D. the efficiency of loading is greater

河南师范学院一院、二院分别独立为开封师范学院新乡师范学院是在哪一年?()

A. 1954
B. 1955
C. 1956
D. 1957

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