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【简答题】
Which is safer Which is safer-staying at home, traveling to work on public transport, or working in the office? Surprisingly, each of these carries the same risk, which is very low. However, what about flying netpared to working in the chemical industry? Unfortunately, the former is 65 times riskier than the latter! In fact, the accident rate of workers in the chemical industry is less than that of almost any of human activity, and almost as safe as staying at home. The trouble with the chemical industry is that when things go wrong they often cause death to those living nearby. It is this which makes chemical accidents so newsworthy. Fortunately, they are extremely rare. The most famous ones happened at Texas City (1947), Flixborough (1974), Seveso (1976), Pemex (1984) and Bhopal (1984). Some of these are always in the minds of the people even though the loss of life was small. No one died at Seveso, and only 28 workers at Flixborough. The worst accident of all was Bhopal, where up to 3,000 were killed. The Texas City explosion of fertilizer killed 552. The Pemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, just a month before the unfortunate event at Bhopal. Some experts have discussed these accidents and used each accident to illustrate a particular danger. Thus the Texas City explosion was caused by tons of ammonium nitrate( 硝酸铵 ),which is safe unless stored in great quantity. The Flixborough fireball was the fault of management, which took risks to keep production going during essential repairs. The Seveso accident shows what happens if the local authorities lack knowledge of the danger on their doorstep. When the poisonous gas drifted over the town, local leaders were incapable of taking effective action. The Pemex fire was made worse by an overloaded site in an overcrowded suburb. The fire set off a chain reaction i s exploding storage tanks. Yet, by a miracle, the two largest tanks did not explode. Had these caught fire, then 3,000 strong rescue team and fire fighters would all have died. 1. Which of the following statements is true? (1.0分) A. Working at the office is safer than staying at home. B. Travelling to work on public transport is safer than working at the office. C. Staying at home is safer than working in the chemical industry. D. Working in the chemical industry is safer than traveling by air.
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参考答案:
举一反三
【单选题】下列叙述中,哪项是正确的?
A.
最大呼气所能呼出的气量称为余气量
B.
平静呼气末在肺内残留的气体量称为机能余气量
C.
机能余气量是最大呼气末存留于肺中的气体量
D.
补呼气量与机能余气量两者之和称为余气量
E.
余气量大小可影响平静呼气基线位置
【单选题】平静呼气末,肺内所余留的气量称
A.
肺活量
B.
肺总量
C.
功能余气量
D.
余气量
【单选题】在无限远物面与像方焦平面的共轭面中,横向放大率为( )。
A.
±∞
B.
+∞
C.
-∞
D.
0
【多选题】预测是以下活动的依据
A.
能力计划
B.
预算
C.
销售计划
D.
采购计划
【简答题】在对偶婚制下的婚姻是以( )。
【单选题】平静呼气末,肺内所余留的气体量是
A.
肺活量
B.
时间肺活量
C.
残气量
D.
功能残气量
E.
补呼气量
【单选题】预测是以下活动的依据
A.
能力计划
B.
预算
C.
销售计划
D.
以上都是
【单选题】预测是以下活动的依据
A.
能力计划
B.
预算
C.
销售计划
D.
制造计划
E.
以上都是
【判断题】判断直线I II是否在平面上△ABC。是选“正确”,否选“错误”。【图片】
A.
正确
B.
错误
【单选题】在对偶婚制下的婚姻是以 ()
A.
男子为中心
B.
女子为中心
C.
子女为中心
D.
老人为中心
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