单项选择题

I don't think it's sensible of you to ______ your greater knowledge in front of the chairwoman, for it may well offend her.

A．show up
B．show off
C．show out
D．show away
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单项选择题
71（）

A．grease
B．glare
C．suffix
D．suit
问答题
Directions: In this part, you are asked to write a composition on the title of My Aim for Doctoral Study with no less than 200 English words. Your composition should be based on the following outline given in Chinese. Put your composition on the ANSWER SHEET.
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