单项选择题

Automation threatens mankind with an increased number of()hours.

A. useless
B. active
C. complex
D. idle

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单项选择题

Max, a student of Chinese literature from Australia, is very () Beijing opera.

A. fond in
B. fond for
C. keen for
D. keen on

单项选择题

Their air of cheerful self-sacrifice and endless complaisance won them undeserved praise, for their seeming gallantry was wholly motivated by a () wish to avoid confict of any sort.

A. poignant
B. sincere
C. laudable
D. cowardly

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