单项选择题

在两点分布中，若随机变量X=0时的概率为p，则X=1时的概率为()

A.1-p
B.p
C.1
D.1+p

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大白菜的莲座期(名词解释)

单项选择题

Using accrual accounting, expenses are recorded and reported only().

A.when they are incurred, whether or not cash is paid
B.when they are incurred and paid at the same time
C.if they are paid before they are incurred
D.if they are paid after they are incurred