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设集合A=B= http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image001.png,从A到B的映射 http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image002.png, 则在映射 http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image003.png下B中的元素(1,1)对应的A中元素为(   )

发布时间:2021-08-04

A.(1,3)

B.(1,1)

C.http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image004.png

D.http://picflow.koolearn.com/upload/2012-12/18/ac7ee4ef-ee55-422a-b748-884ef5065dd9/paper.files/image005.png

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