单项选择题

The medical center couldn't ______ which group the flu virus belonged to owing to the lack of more blood samples.

A．scan
B．discern
C．testify
D．disclose
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单项选择题
Regular use of the facial cream will help to ______ the rough, dry condition of your skin.
A．abstract
B．evaporate
C．refresh
D．alleviate
单项选择题
In case of poisoning, immediately give large quantities of soapy or salty water in order to ______ vomiting.
A．induce
B．inflict
C．inhibit
D．insulate
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