热油泵的预热跨线跨过下面哪一项（）。
A、出口单向阀
B、泵体
C、入口阀
D、泵体和入口阀
参考答案：A
《土工试验规程》（SL237-1999）砂类土根据其中细粒含量及类别、粗粒组的级配分为（）
A.砾
B.砂
C.含细粒土砂
D.细粒土质砂
A team member notifies the project manager that the activities comprising a work package are no longer appropriate．It would be BEST for the project manager to be in what part of the project management process ？（）
A．Corrective actio
B．Integrated change contro
C．Monitoring and controllin
D．Project closin
