【简答题】设A,B为两事件且P(AB)=0,则[ ] (A) A与B互斥; (B) AB是不可能事件; (C) AB未必是不可能事件; (D) P(A)=0或P(B)=0.
【简答题】Rooms are offered subject to ________ (available)
【简答题】The rooms offered by sponsor are luxuriously and __________ furnished. [A] artificially [B] ambitiously [C] arbitrarily [D] artistically
【简答题】总结本门课程主要讲了哪些内容。列示1、2、3等。
【单选题】设A、B为两个事件,且P(A)>0,且 ,则( )
【单选题】设 A、B 为两事件,且P(AB)=0 ,则 [ ]