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S2. How does the polygraph work

【参考答案】

It measures people’s blood pressure and pulse rate．
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S3. The law of December, 1988 prohibits employers from examing people who apply for jobs except
单项选择题
A．Between 19th and 20th Jefferson Street.B．Between 19th and 20th Jackson Street.C．Between 9th and 1Oth Jackson Street.D．Between 90th and 91th Jefferson Street.
A．Between 19th and 20th Jefferson Street.
B．Between 19th and 20th Jackson Street.
C．Between 9th and 1Oth Jackson Street.
D．Between 90th and 91th Jefferson Street.
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