根据世界银行、国际咨询工程师联合会的规定,属于项目间接建设成本的是( )。
A.临时公共设施及场地的维护费
B.建筑保险和债券
C.业主的行政性费用
D.杂项开支费用
参考答案:C
—Does your brother serve in the army?
—No, not now. But he _____ in the army for 8 years.[ ]
A. would serve
B. was serving
C. had served
D. served
压缩气体和液化气体具有易燃、易爆、助燃、无毒等性质。