根据《建筑消防设施安装质量检验规程》规定，排烟防火阀平时处于关状态，电动打开时动作正常，并应向消防控制中心发出排烟防火阀打开信号；手动能复位。
参考答案：错
Fill in the blanks with the right forms of the given words. 用所给单词的适当形式填空。
1. I want (buy) a gift for my family.
2. The flag (cost) one dollar.
3. "It's a good idea." says Li Ming (happy).
4. Li Ming said he (want) a ball.
5. The bus (come) soon.
6. How many (people) are there in the room ?
7. What time (do) the party begin ?
8. Do you remember (play) games yesterday ?
9. How many ____ (gift) do you need ?
10. Li Ming _____ (shop) in the store now.
在进行通信保障时需要时刻监控设备告警，以下属于设备告警的是（）
A.驻波比告警
B.GPS状态告警
C.BBI光口断链
D.单板硬件故障告警
