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
In times of severe______ companies are often forced to make massive job cuts in order to survive.
A．concession
B．recession
C．Submission
D．conversion
单项选择题
It has been______ that senior officials were involved in a $ 20 million drugs deal.
A．addicted
B．alleged
C．assaulted
D．ascribed
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