单项选择题

To prevent the spread of the epidemic, the public health organization carries out frequent ______ on the restaurants.

A．inspection
B．investigation
C．observation
D．examination
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单项选择题
She often begged her husband not to go out at night, but her words were of little______.
A．function
B．influence
C．avail
D．restriction
单项选择题
He is planning another tour abroad, yet his passport will______ at the end of this month.
A．expire
B．exceed
C．terminate
D．cease
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