• 2022-06-19
    设I为整数集合。选出下列是I上的二元运算的二元关系
    A: [img=348x25]1803980f668c564.png[/img]
    B: [img=286x25]1803980f708fa4d.png[/img]
    C: [img=318x25]1803980f7b55f03.png[/img]
    D: [img=294x25]1803980f86adba1.png[/img]
    E: [img=282x25]1803980f908d594.png[/img]
    F: [img=371x25]1803980f9aadc82.png[/img]
    G: [img=383x25]1803980fa5b7fc8.png[/img]
    H: [img=368x25]1803980fb04eba9.png[/img]
    I: [img=279x25]1803980fbbced35.png[/img]
  • 举一反三