混凝土搅拌机供水系统的指示水量与实际水量的一致性,当误差超过()时,应检查管路的漏水点,或应校正节流阀。
A、1%
B、2%
C、3%
参考答案:B
---What are the people in Korea supposed to do when they meet for the first time?
--- They are supposed to _______.
A.kiss
B.bow
C.say hello
D.shake hands
发生火灾时,湿式系统由闭式喷头探测火灾,水流指示器报告起火区域,报警阀组或稳压泵的压力开关输出启动供水泵的信号,完成系统的启动。