已知A={0,1},B={-1,0,1},f是从A到B的映射,则满足f(0)>f(1)的映射

已知A{0,1}B{1,0,1}f是从AB的映射,则满足f(0)>f(1)的映射有                                                                                           (  )

A3个      B4      C5                   D2

答案

A

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