Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.
Which of the following, if true, constitutes the strongest reason to require implementation of the safety officials' recommendation?
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ATest evacuations showed that putting on the smoke hoods added considerably to the overall time it took passengers to leave the cabin
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BSome airlines are unwilling to buy the smoke hoods because they consider them to be prohibitivelyexpensive.
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CAlthough the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting
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DSome experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff
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EIn many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane
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显示答案
正确答案: E