单项选择题
设随机变量[2,2]上服从均匀分布,则P(x≥1)=()。
A.0B.1/4C.1/2D.1
单项选择题 As of August 13 , 2014, the United States is the() populous country in the world.
单项选择题 The Australian() has been the leftwing party of reform.
单项选择题 下列哪个不是有效市场营销组织的特点?()