Questionnaires and multiplestatisticmethod are used to explore the PM leadership behavior of head-teachers in Junior Middle School.
本研究采用问卷法和多元统计等方法对初中班主任的PM领导行为进行了实证研究。
2
On the basis of mathematical statistic, using the method of multiple regression analysis, the practical calculating formula of the shear lag coefficient in thin-walled curved box girders is derived.