单项选择题

The progress of science depends largely on the interactions within the scientific ______.

A. community
B. neighborhood
C. federation
D. integration
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Experts offer health ______ as kids will be returning to the classroom this week.
A. slips
B. tips
C. gossips
D. clips
单项选择题
Cherie Blair feels she has a lot to say when asked what she likes ______ her husband.
A. from
B. in
C. to
D. about
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