组合数学19春在线作业1-0003

adminhan

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A:-
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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