f:A→B,g:B→C是两个一对一映射,复合映射<img src='https://img2.soutiyun.com/ask/6114001-6117000/a9eee59481dba95f6b57c645884616c1.jpg' />:A→C满足( ).

A.<img src='https://img2.soutiyun.com/ask/6114001-6117000/a9eee59481dba95f6b57c645884616c1.jpg' />是满射 B.<img src='https://img2.soutiyun.com/ask/6114001-6117000/a9eee59481dba95f6b57c645884616c1.jpg' />是一一对应映射 C.<img src='https://img2.soutiyun.com/ask/6114001-6117000/a9eee59481dba95f6b57c645884616c1.jpg' />是一对一映射 D.<img src='https://img2.soutiyun.com/ask/6114001-6117000/a9eee59481dba95f6b57c645884616c1.jpg' />不一定是A或B或C

时间:2023-03-25 15:55:39

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