题目内容

He was so ______ that he ended up as a fresher in Qinghua university three years later.

A. tragic
B. diligent
C. robust
D. clear-cut

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Only by keeping down costs will America ______ its competitive advantage over other countries.

A. uphold
B. inhibit
C. slack
D. maintain

People there are told it is their ________ duty to support the national economy by buying their own products.

A. robust
B. glamorous
C. patriotic
D. tragic

His success came from ________ rather than opportunity .

A. glamor
B. optimism
C. endeavor
D. abortion

I want to ______ my partners for the very important commitments that they made to the project.

A. uphold
B. spur
C. appoint
D. commend

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