A、B是两个随机事件,P( A ) = 03,P( B ) = 04,且A与B相互独立,则 P(A∪B)=( )(单选)—4分
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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