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{{B}}Sleeping{{/B}} People who sleep for more than eight hours a night do not live as long as those who sleep for six hours, according to the biggest study yet into sleep patterns and mortality (死亡率). Scientists have no explanation for the findings and do not know if they mean people who like a lie-in (睡懒觉) can extend their lives by sleeping less. Although it is a common belief that sleeping for at least eight hours a night is vital for health and well-being, the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm. "Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of [单选题]AC02 站队级应急预案演练每年至少演练( )次。
A.1 B.2 C.3 D.4 [单选题]吞咽训练时，当患者会厌上凹易残留食物时，应采用下述哪项训练
A.空吞咽与交互吞咽 B.交互吞咽 C.侧方吞咽 D.点头样吞咽 E.声门上吞咽训练 [判断题]( )老年人如果长期处在前倾的体位操作轮椅，可能导致脊柱变形、胸 部受压，造成呼吸困难。
A.正确 B.错误 [单选题]生产现场存在典型危险点的部位应设置（ ）警示牌。
A.A.环境危险 B.B.危险区域 C.C.危险点 D.D.人身伤害 E.略 F.略 [多选题]十九大报告提出,引导人们树立正确的四观有哪些?( )
A.国家观 B.历史观 C.世界观 D.文化观 E.民族观 [单选题]单结晶体管内部有（ ）个PN结
A.一个 B.四个 C.三个 D.二个 [单选题]依据南网安规，220kV设备非作业的安全距离为（）。
A.1.0m B.1.5m C.3.0m D.5.0m [单选题]拆卸时的基本原则是，拆卸顺序与（ ）相反
A.装配顺序 B.安装顺序 C.组装顺序 D.调节顺序 [单选题]患者，男性，40岁，因外伤导致尿失禁，现遵医嘱为该患者进行留置导尿导尿管插入见尿液流出后再插入的深度是
A.2cm B.7~10cm C.12~16cm D.16~20cm E.20~22cm [判断题]手锯有固定式与调节式两种。
[单项选择]复议机关改变原具体行政行为经复议机关复议( )是被告。
A. 复议机关 B. 原机关和复议机关 C. 原机关 D. 复议机关的上级机关 [填空题]业务部门在资金安全管理中对申请支付的经济业务事项( )、( )、( )负责。
[单选题]关于用脑,下列哪项是错误的?( )
A.勤用脑会降低大脑工作效率 B.用脑应劳逸结合 C.参加锻炼是对大脑的休息 D.用脑环境的不好会降低大脑的工作效率 [单选题]高速铁路区段防护分歧道岔的线路所通过信号机，其机构外形和显示方式，应与（ ）信号机相同。
A.进站 B.出站 C.进路 D.通过 我来回答: 提交
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