Next time you enter a username and password, think about the rhythm of your

游客2023-06-25 54

问题 Next time you enter a username and password, think about the rhythm of your typing. Not only can it be used to identify you, it can reveal if you are in a stressful environment.
It has long been known that the rhythms of a person’s typing style are【C1】______over time, leading to suggestions they could be used to【C2】______identity or even spot early signs of Alzheimer’s disease. But little was known about the effect of stress on typing【C3】______, so psychologist Mike Dowman and colleagues at the University of Abertay investigated.
They asked 35 people to log into a computer 36 times over three【C4】______sessions up to a month apart, using the same username and password. People were put into【C5】______and relaxed states alternately(交替地)by listening to a range of sounds known to【C6】______particular emotions.
The length of time each key was held down and the【C7】______between one being released and another pressed was recorded to generate a typing "fingerprint" for each person. The team used the data to develop and test software that identifies a person from their typing style【C8】______.
The data also showed that stress can be【C9】______in a person’s typing because it changes the pattern of timings.
"There’s no question: people do type【C10】______under stress," says Dowman. He suggests that security systems could be designed to raise the alarm if it seems that a person might be being forced to log into a system. More research will be needed, however, before a system could tell if a person is, say, just having a bad day or being held at gunpoint.
A)stressed E)interval I)differently M)normally
B)alone F)verify J)environments N)patterns
C)provoke G)only K)detected O)separate
D)stable H)unchangeable L)complete [br] 【C1】

选项

答案 D

解析此处应为形容词。空前的rhythms表明此处表示打字节奏如何，形容词词库中，stable和unchangeable均可用于描述rhythm，根据下文提到的不同压力下同一个人的打字节奏也会不同，可知unchangeable过于绝对，不符文意，故排除。选stable。

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