好氧生物处理系统开车准备中,错误的做法是()
A.开车时对活性污泥或生物膜进行培养驯化
B.开车前对生化池进行闷曝
C.闷曝时补充营养物
D.提前间断对生化池进行闷曝
参考答案:A
保险合同的有效期间,保险人为被保险人提供保险保障的起讫时间称为()。
A.保险范围
B.保险责任
C.保险客体
D.保险期间
A client hospitalized with pneumonia has thick, tenacious secretions. To help liquefy these secretions, the nurse should ().
A.turn the client every 2 hours.
B.elevate the head of the bed 30 degrees.
C.encourage increased fluid intake.
D.maintain a cool room temperature.