( )不是设备监理项目目标系统的主要子目标。
A．时间
B．成本
C．环境
D．技术性能
参考答案：C
— Have you found anything interesting?
— None of the information ________ particularly useful to me. [ ]
A. is
B. are
C. have
D. has
汽轮机本体有那几个部分组成？
