某灯泡厂生产的一批灯泡的寿命均匀分布在区间[28,98]天内,从

某灯泡厂生产的一批灯泡的寿命均匀分布在区间[28,98]天内,从这批灯泡中任取一只寿命超过60天的概率为(    )

A.                 B.                 C.               D.

答案

D

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