单项选择题

A．An overall rise in blood pressure and heart rote.
B．There is no change in blood pressure and heart rate.
C．A drop in blood pressure but a rise in heart rote.
D．An overall drop m blood pressure and heart rote.
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单项选择题
A．He is a college professor.B．He is in the a computer company.C．He is in the advertising business.D．He is a computer specialist.
A．He is a college professor.
B．He is in the a computer company.
C．He is in the advertising business.
D．He is a computer specialist.
单项选择题
A．7 and half hours.B．10hour.C．8 and half hours.D．8 hours.
A．7 and half hours.
B．10hour.
C．8 and half hours.
D．8 hours.
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