设P(A)=0.7,P(A-B)=0.3,则P(AB)=()
设P(A)=0.7,P(A-B)=0.3,则P(AB)=()
A.0.6
B.0.4
C.0.3
D.0.1
正确答案:B
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时间:2022-05-09 14:59:15