• 2022-06-01
    设A,B为任意两个事件,且[img=52x20]1803d9d711262ca.png[/img],[img=73x25]1803d9d719d8a93.png[/img],则下列选项中必然成立的是
    A: [img=121x25]1803d9d72269a91.png[/img]
    B: [img=121x25]1803d9d72af3507.png[/img]
    C: [img=121x25]1803d9d73453597.png[/img]
    D: [img=121x25]1803d9d73d2d16c.png[/img]