水景给水系统的组成有()部分、设备部分,设备部分包括喷头、管道、阀门、水泵、供配电装臵、自动控制装臵。
参考答案:土建
You can imagine what great trouble they have________the problem________. [ ]
A. to solve; being talked about
B. solving; discussing
C. to solve; to talk about
D. solving; being discussed
赫茨伯格把生活条件、人际关系、监督方式、工资收入等称之为()
A.满意因素
B.保健因素
C.管理因素
D.激励因素