若P(A)=0.7,P(A-B)=0.3,则P(https://bgk-photo.cdn.bcebos.com/30adcbef76094b369adb018db3cc7cd98d109d00.jpg)=____.
若P(A)=0.7,P(A-B)=0.3,则P(https://bgk-photo.cdn.bcebos.com/30adcbef76094b369adb018db3cc7cd98d109d00.jpg)=____.
发布时间:2025-08-13 23:45:27