设备投运前信息主要包括（）。
A.设备技术台账
B.设备监造报告
C.出厂试验报告
D.交接试验报告
E.安装验收记录
参考答案：A, B, C, D, E
When asked what original intention would lead them to volunteer, about _______ said they were “willing to do something for the Games.”
A．half of them
B．half of which
C．half of whom
D．half of who
人工监测水位，应测量两次，间隔时间不应少于（），取两次水位的平均值，两次测量允许偏差为±0.02m。
A、1min
B、10min
C、30min
D、1h
