诚信建设的首要和根本是（）
A.社会诚信
B.政务诚信
C.个人诚信
D.商务诚信
参考答案：B
Utility function is a commonly used technique to find out the tolerance of a project manager towards risk．Some project managers are more averse towards risk than others．All the following are different classifications of tolerance for risk EXCEPT______．
A．risk averter
B．risk seeker
C．risk mitigator
D．risk neutral
曲线板是用来描绘（）曲线的。
A.正圆
B.非圆
C.任意
D.圆弧
