正常监视状态是火灾报警控制器接通电源后，无火灾报警、故障报警、屏蔽、监管报警、消音等发生时所处的状态。
参考答案：对
Who would you rather _____ the room? Jim, of course.[ ]
A. have clean
B. have cleaned
C. get clean
D. get cleaned
简述冲模的结构组成。
