设 f(x) 和 F(x) 分别是随机变量X 的分布密度函数和分布函数,则对任意a<b,有()
下列算式,( )的结果是奇数.
建设项目财务评价中所涉及的营业税、增值税、城市维护税和教育费附加,是从()中扣除的。
下面分数中,是最简分数的是()
_______ that the scientist will give us a talk next month?
With the publication of( ),Theodore Dreiser was launching himself upon a long career that would ultimately make him one of the most significant American writers of the school later known as literary naturalism.
向量组的秩是 ( ).
设二维随机变量( X,Y)~ N(μ1, μ2,),则 Y ~()
折旧率随着使用年限的变化而变化的固定资产折旧计算方法是()。