设随机事件A与B互不相容，P（A）=0.2，P(B)=0.4，则P（B|A）=（）-湖北继续教育网网校

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[单选题]设随机事件A与B互不相容，P（A）=0.2，P(B)=0.4，则P（B|A）=（）

A0b.0.2c.0.4d.1

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