检修试验信息应在检修试验工作结束后（）内录入生产管理信息系统。
参考答案：一周
—Where is your mother?
—She _____ because she is ill.[ ]
A. lies in the bed
B. lying in bed
C. is lying in bed
D. lies in bed
润滑冲洗液是一种（）。
A．表面活性剂溶液
B．乳化液
C．无机润滑液
