单选题 Which of the following is a direct project cost?
A) Lighting and heating for the corporate office.
B) Workers compensation insurance.
C) Piping for an irrigation project.
D) A and B.

【正确答案】 C

【答案解析】下列哪个属于项目直接成本?
A) 公司办公室的照明和取暖费用。
B) 工人的保险补偿费用。
C) 一个灌溉项目的铺设管道费用。
D) A和B。