单项选择题

A headache for the government is how to solve the problem of nationwide labour ______.

A．sufficiency
B．abundance
C．extra
D．surplus
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单项选择题
Many corporations ______ extensive employee education programs to ensure their survival in the market.
A．encounter
B．implement
C．prevail
D．reconcile
单项选择题
The doctor prescribed him some medicine to ______ his fever.
A．put down
B．set down
C．turn down
D．bring down
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