测验法
参考答案：
是指使用特定的量表为工具，对个体的心理特征进行间接了解，并做出量化理论的研究方法。
Why is it important to have a project charter ？（）
A．It is the collection of all subsidiary project documents.
B．The project charter is the necessary basis for all work packages to be performed.
C．It formally authorizes the project.
D．It tracks the progress of the project.
电动燃油泵性能不良，会造成加载时发动机转速下降。
