水泥搅拌桩施工完成（）天后，进行质量检验，静载试验、抽芯检验频率必须符合设计及规范要求。
A.15
B.20
C.28
D.30
参考答案：C
个案护理方式的优点包括（）
A.护患沟通机会多
B.病情观察全面
C.职责任务明确
D.护理工作连续性强
E.护士责任心增强
A 58-year-old client on a mental health unit has lost control, despite having been properly medicated, and is threatening to harm himself and others. He has been placed in four- point restraints. Which nursing measure should be taken next ？（）
A．Release one restraint every 15 minutes.
B．Have a staff member stay with the client at all times.
C．Leave the client alone to reduce his sensory stimulation and allow him to regain control.
D．Restrict fluids until the restraint period is over.
