单项选择题

波纹填料适用于有沉淀物、容易结疤、聚合和粘度较大物料。( )
A、正确
B、错误

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单项选择题

男性，75岁，夜间尿频、排尿困难6年。直肠指检查示前列腺重度增生。拟手术治疗收入院。入院第5天，行TURP术，术后行膀胱冲洗。下列护理措施中，不正确的是（）

A.用生理盐水冲洗
B.准确记录冲洗量和排出量
C.冲洗速度根据尿色而定
D.引流不畅时应及时施行低压冲洗
E.定时挤捏尿管

单项选择题

If there are a number of survivors in the water abandoning ship, they should _____.

A．tie themselves to the unit so they won’t drift with the current
B．form a small circular group to create a warmer pocket of water in the center of the circle
C．send the strongest swimmer to show for assistance
D．form a raft by lashing their life preservers together