单项选择题

Moderate and regular exercise can boost the rate of blood circulation and metabolism.

A．restrict
B．reduce
C．increase
D．stabilize
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单项选择题
In spite of the taxingbusiness schedule, he managed to take some time off for exercise.
A．imposing
B．demanding
C．compulsory
D．temporary
单项选择题
A careful screeningof the disease will lessen the patients anxiety.
A．showing
B．hiding
C．investigation
D．projection
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