单项选择题

It is a complicated problem．()

A. strange
B. complex
C. difficult
D. unusual

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单项选择题
This meeting which should be held today is postponed to next week.()

A. delayed
B. flourished
C. poised
D. enquire
单项选择题
Michael is now merely a good friend.().

A. largely
B. possibly
C. just
D. rarely
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