组合数学19春在线作业2-0004

adminhan

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:-
B:-
C:-
D:-

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确

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A:错误
B:正确