估算寿命周期成本时，权衡分析是对性质完全相反的两个要素作适当的处理，其目的是为了提高总体的（）
A.使用性
B.功能性
C.价值性
D.经济性
参考答案：D
治疗肺炎时使用阿米卡星的最佳给药次数是
A．6h给药1次B．8h给药1次C．10h给药1次D．12h给药1次E．全日剂量1次
A project manager does not have much time to spend planning before the mandatory start date arrives．He therefore wants to move through planning as effectively as possible．Which of the following would you recommend ？（）
A．Make sure you have a completed preliminary project scope statement and then start the WB
B．Create an activity list before creating a network diagra
C．Document all the known risks before you document the high-level assumption
D．Finalize the quality management plan before you determine quality metric
