[判断题]人员密集场所是指有可能发生造成重大人员伤亡，重大财产的火-我要搜题网

[单选题]《安全生产法》规定,生产经营单位的从业人员有依法获得( )的权利,并应当依法履行安全生产方面的义务。
A.安全生产保障
B.劳动保障
C.社会保障
D.获得劳动报酬保障

[单选题]关于作业条件危险评价法的简化公式为D=L·E· C，说法不正确的是（）。 A.L代表发生事故的可能性 B. E.代表暴露于危险环境中的频繁程度
A.
B.代表发生事故的可能性
C.
D.代表危险性总分位

[单选题]通常，要定期对正压呼吸器进行检查，工作压力不足()时，应进行充气。
A.18MPa
B.25MPa
C.28MPa
D.30MPa

[不定项选择题]共用题干 Life Expectancy in the Last Hundred Years
A hundred years ago,life expectancy in developed countries was about 47;in the early 21 st century,men in the United States and the United Kingdom can expect to live to about 74,women to about 80, and these______(51)are rising all the time .What has brought______(52) these changes?When we look at the life______(53)of people 100 years ago,we need to look at the greatest______(54)of the time .In the early 20th century,these were the acute and of-ten______(55)infectious diseases such as smallpox.Many children died very young from these diseases and others,and the weak and elderly were always at risk.
In the______(56)world these diseases are far______(57)today,and in some cases have almost disappcarcd.A number of______(58)have led to this:improvements in sanita- tion and hygiene,the discovery and use of antibiotics,which______(59)bacterial diseases much less dangerous,and vaccinations______(60)common diseases.______(61), people's general health has improved with improvements in our general environment:cleaner air,better means of preserving food,better and warmer housing,and better understanding of nutrition.
Genetically,we should all be able to live to about 85 but______(62)people do live longer today,there are still some big killers around that are preventing us from consistently reaching that age .The problems that affect people today are the more chronic illnesses,such as heart disease and strokes,and those______(63)by viruses,such as influenza and AIDS.Of course,cancer is a huge killer as well.In most cases these diseases affect______(64)people,but there are worrying trends in the developed world with problems such as obesity______(65)more heart disease and illnesses such as diabetes at younger ages.
The killers today can be classed as"lifestyle diseases",which means that it may be possiblem to halt their progress. 52._________
A.in
B.about
C.to
D.with

[判断题]人员密集场所 是指有可能发生造成重大人员伤亡，重大财产的火灾，爆炸、毒害等灾害事故的场所设施。( )（易）A.正确B.错误

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[判断题]人员密集场所是指有可能发生造成重大人员伤亡，重大财产的火灾，爆炸、毒害等灾害事故的场所设施。( )（易）
A.正确
B.错误