| Judging from recent surveys, most
experts in sleep behavior agree that there is virtually an epidemic of
sleepiness in the nation. "I can’t think of a single study that hasn’t found
Americans getting less sleep than they ought to," says Dr David. Even people who
think they are sleeping enough would probably be better off with more
rest. The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to A. improve one’s memory dramatically B. be considered dynamic by other people C. maintain one’s daily schedule D. feel energetic and perform adequately [单选题]《民用航空电信人员执照管理规则》第二十七条规定，下面（ ）是电信申请人应当具备与民用航空通信导航监视服务保障工作相关的知识。
A.国际民用航空公约及其附件、文件的相关内容 B.设备的性能及技术指标 C.民用航空通信导航监视服务工作程序 D.以上都是 [多选题]根据《建设工程项目管理规范》相关规定，下列属于项目质量管理实施程序的有（ ）。
A.确定质量计划 B.质量计划评审 C.实施质量控制 D.落实质量改进 E.开展质量检查与处置 [判断题]BBA034 4 3 2
常见的弹簧式安全阀可分为有扳手和无扳手两种。( ) A.正确 B.错误 [单选题]提速道岔的表示继电器采用（ ）型继电器。
A.JWJXC—135/220 B.JPXC—1000 C.JWXC—1700 [填空题]我国中央国库实行了业务上（）的管理体制，地方金库实行中国人民银行与地方政府（）的体制。
[多项选择]进出境货物的报关包括：( )。
A. 代理报关 B. 委托报关 C. 专业报关 D. 自理报关 [判断题]《岗位作业指导书》中要求列车长要按规定落实始发前1.5小时的“三乘检查”，对设备设施的性能配备及状态、隐蔽部位等进行检查发现问题及时记录督促整改签字确认。
A.正确 B.错误 [判断题]叉车插取货物时,货叉的水平段用来插入货物或托盘的底部,因此货叉的水平段上表面必须水平。( )
A.正确 B.错误 [简答题]简述信度与效度的关系。
[填空题]Most "unassertive" people are not confident and take no for an answer much too easily. There is a growing awareness in our society that this tendency (1) the rights of large numbers of people. For example, in recent years there has been an upsurge in (2) and pressure groups. This is a (3) as there will always be a need for such organizations to (4) individuals and minorities in a competitive society. The danger is that we (5) for our rights and lose the art of asserting ourselves. It is better for (6) with other people if you can learn (7) for yourself.
Now, we have to learn to ignore some of the (8) that may be ringing in our unconscious minds, such as: "If you ask once more, I’ll flatten you", and " (9) ". The main technique that we use in (10) to practice the art of persistence is called Broken Record. (11) we hear one sentence over and over again un [判断题]欧洲债券市场上，附债务权证债券允许权证持有人以与主债券相同的价格和收益率向发行人购买普通股股票。( )
[单项选择]白内障手术率是指（）
A. 每年每百万人群中所作的白内障手术数 B. 每年白内障手术总数 C. 每年每万人中所作的白内障手术数 D. 每年每个手术医师所作的白内障数 E. 每年白内障患者接受手术治疗的比例 [单选题]正线道岔对向设置，有列车同时通过两侧线时，道岔间直线段长度一般条件下不应小于（ ）。
A.50m B.40m C.30m D.45m 我来回答: 提交
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