三要用于保护火灾危险性大、火灾扑救难度大的专用设备或设施的灭火系统是( )。

A．水喷雾灭火系统

B．自动喷水灭火系统

C．重复启闭预作用灭火系统

D．水幕系统

A customer is not happy with a project deliverable. What is your BEST course of action

A．Tell the customer it meets the scope of work and get the customer's agreement to procee

B．Determine why the customer is unhappy with the deliverabl

C．Meet with the team to determine changes neede

D．Meet with the customer and offer a substitute project deliverabl