单项选择题

I don't think it's wise of you to ______ your greater knowledge in front of the director, for it may offend him.

A．show up
B．show out
C．show in
D．show off
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单项选择题
The industry most severely affected by the financial crisis is ______.
A．tourism
B．banking system
C．foreign trade
D．private industries
单项选择题
Which is NOT a problem faced by the Asians
A．Inflation.
B．Devaluation.
C．Privatization.
D．Unstable income.
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