总结的主要作用是提高自身和()
A.上情下达
B.下情上达
C.有利奖惩
D.有利改革
正确答案是B
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上一篇:A为三阶矩阵,0,-1,1为它的三个特征值。其对应的特征向量为。设Quite a few words come from names of books and thus take on the( ) associated with the names described in the books.
A为三阶矩阵,0,-1,1为它的三个特征值。其对应的特征向量为。设Quite a few words come from names of books and thus take on the( ) associated with the names described in the books.