“夏威夷宣言”做出的国际伦理原则，其明确规定主要是针对
A．老年病人
B．传染病人
C．精神病人
D．妇女、儿童
E．性病病人
参考答案：C
水景的构成有哪些？
A project manager needs to analyze the project cost to find ways to decrease costs. It would be BEST if the project manager looks at （）.
A．variable costs and fixed costs
B．fixed costs and indirect cost
C．direct costs and variable costs
D．indirect costs and direct costs
