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A sample of 57 students was selected. Find the complements of the following events.
1)Choose one(not equal to 11/more than 11/less than 11
2)Choose one(At most 10,/at most 11/at most 12)
3)Choose one(fewer than 10/fewer than 11/fewer than 12)
4)Choose one(more than 10/more than 11/more than 12)
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