• 2022-06-08
    设事件A,B,C有包含关系:[img=51x20]180390a8b2de9f2.png[/img], [img=51x20]180390a8bad1c3d.png[/img],则( ) .
    A: [img=116x25]180390a8c2fda00.png[/img]
    B: [img=186x25]180390a8cb7ad17.png[/img]
    C: [img=194x25]180390a8d8d7544.png[/img]
    D: [img=136x25]180390a8e160674.png[/img]