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Although "lie detectors" are widely used by governments, police departments and businesses, the results are not always accurate.
Although "lie detectors" are widely used by governments, police departments and businesses, the results are not always accurate.
admin
2011-03-01
60
问题
Although "lie detectors" are widely used by governments, police departments and businesses, the results are not always accurate. Lie detectors are commonly【C1】______as emotion detectors, for their aim is to【C2】______bodily changes that contradict what a【C3】______says. The lie detector records changes【C4】______heart rate, breathing, blood pressure, and the electrical【C5】______of the skin. In the first part of the【C6】______you are electronically connected to the machine and【C7】______a few neutral questions("What is your name?" etc. ). Your physical reactions serve【C8】______the standard for evaluating what comes【C9】______Then you are presented with a few【C10】______questions among the neutral ones( "When did you rob the bank?" ). The idea is that if you are【C11】______, your body will reveal the truth, even if you try to【C12】______it. Your heart rate and breathing will change【C13】______as you respond to the questions.
That is the theory, but psychologists have found that lie detectors are simply not【C14】______. Since most physical changes are the same across【C15】______emotions, lie detectors cannot tell【C16】______you are feeling angry, nervous or excited.【C17】______people may be tense and nervous【C18】______the whole procedure. They may react physiologically to a certain word( "bank" )not because they robbed it, but because they recently used a bad check. In either【C19】______, the machine will record a "lie".
On the other hand, some practiced liars can lie【C20】______hesitation, so the reverse mistake is also common.
【C14】
选项
A、reliable
B、usable
C、reasonable
D、comprehensible
答案
A
解析
本题考查对上下文的理解和词义辨析。此处有转折连词“but”,所以行文做了转折,从而推知此处意为“测谎仪不可靠”。下文具体阐释了“人们在不同情绪状态下测谎仪测出的效果相同”。reliable可靠的,可信赖的;usable可用的,合用的,便于使用的;reasonable合理的,有道理的;comprehensible可以理解的。故选A。
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公共英语三级笔试题库公共英语(PETS)分类
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公共英语三级笔试
公共英语(PETS)
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