非国有资金投资的建设工程，宜采用工程量清单计价。
参考答案：错
Ms Wright complained that her husband never asked about the price ___ he decided to buy musical disks.
A．while
B．before
C．after
D．as soon as
管路系统的特性曲线是随着（）的增加而上升。
A、流量
B、扬程
C、轴功率
D、效率
