Many people view retirement as a time
to stop working. But new research shows that people who take on full-or
part-time jobs after retirement have better health. The finding is based on data collected from 12,189 men and women over a 6-year period. The participants, who were from ages 51 to 61 at the start of the study, answered questions about their employment history, experiences after retirement and their physical and mental health. Researchers from the University of Maryland found that men and women who kept working after retirement had fewer major diseases or disabilities than those who quit work, according to the study. Retirees benefited whether the work was a full-or-part-time job, self-employment or temporary. While working after retirement is good for you, the data also suggest that retirees shouldn’t tak A. The participants were investigated for 6 years between ages 51 to 61. B. The participants answered questions at the start of the study. C. The participants who kept working were in better shape than the others. D. All kinds of jobs would be good for people as long as they kept working. [多选题] 下列对等高线描述正确的是( )。
A.同一条等高线上的高程一定相等 B.不同一条等高线上的高程一定不相等 C.除悬崖外、等高线不能相交 D.等高线通过山脊或山谷时改变方向 E.等高线在特殊情况下可以不闭合 [判断题][题号:385;鉴定点:BBB002;判断题;用电烙铁焊晶体管电路时,通常选用内热式25—45W的电烙铁。
A.正确 B.错误 [判断题]采矿作业时即要保证行进方向、不漏采、不复采,船体水平精度达到10~30cm。( )
A.正确 B.错误 [多选题]动火工作负责人的安全责任有()。
A.正确安全地组织动火工作 B.负责检修应做的安全措施并使其完善,并向有关人员布置动火工作,交待防火安全措施和进行安全教育 C.始终监督现场动火工作和负责办理动火工作票开工和终结 D.动火工作间断、终结时检查现场有无残留火种 [判断题]电力电缆沟(槽)开挖时,应将路面铺设材料和泥土分别堆置,堆置处和沟槽之间应保留通道供施工人员正常行走。
A.正确 B.错误 [单项选择]预制安装水池时,要求板缝混凝土分层浇筑,浇筑高度不宜超过250mm,并注意混凝土和易性,二次混凝土入模时间不得()。
A. 超过混凝土初凝时间 B. 超过混凝土终凝时间 C. 小于混凝土初凝时间 D. 小于混凝土终凝时间 [单项选择]Unless we spend money to spot and prevent asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids (流星) that race across the night sky. Most orbit the sun far from Earth and don’’t threaten us. But there are also thousands whose orbits put them on a collision course with Earth.
Buy $ 40 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we’’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’’t be cheap.
Is it worth it Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 400,000 years. Sounds pretty
A. It is very unlikely, but the danger exists., B. Such a collision might occur once every 25 years. C. Collisions of smaller asteroids with Earth occur more often than expected. D. It’s still too early to say whether such a collision might occur. [多选题]设备不停电时的安全距离,以下正确的是()。
A.330kV,4.00m B.110kV,1.50m C.35kV,0.90m D.10kV,0.70m E.略 F.略 [单项选择]A recently released survey from the Employee Benefit Research Institute, a nonprofit group, examined the link between health savings accounts and other health compensation arrangements and cost-conscious behaviors among the people who use them.A. curious
B. discreet C. serious D. vigorous [判断题]担负放空点燃人员要专业精干,必须事先确定好紧急撤离路线、方式,必要时设置掩体,组织水枪实施掩护。
A.正确 B.错误 [单选题]分光光度计在检定周期内,经过维修后,可不再进行检定。
A.是 B.否 [单选题]The company admitted it had failed to ____________ the worker from danger.公司承认它没能保护工人免遭危险。
A.protect B. prevent C. stop D. protest [单选题]HSSE 中的 E (环境) 是指与人类密切相关的、影响 ( ) 和生产活动的各种自然力量或作用的总和。
A.生命 B.疾病 C.健康 D.人类生活 [单选题]在企业财产保险中,必须经过保险人和投保人双方特别约定,并在保险单上载明才可以成为保险标的的财产是( )。
A.有价证券 B.金银首饰 C.家禽家畜 D.机械设备 [单项选择]道床一般分为()
A. 双体道床 B. 无砟道床 C. 单体道床 D. 普通道床 [单选题]患者呼唤睁眼,回答问题含糊不清,针刺肢体能回缩,该患者格拉斯哥昏迷评分记为
A.11 B.10 C.8 D.5 E.3 [判断题]检查和搜查妇女的身体,都应当由女侦查人员进行。 ( )
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