【单选题】下列有关控制测试的样本规模的说法中, 错误的 是( )
B.
总体规模对样本规模的影响几乎为零,除非总体非常小
【单选题】“花甲重逢,外加三七岁月々古稀双庆,还多一度春秋。”这是一幅写给_____ 岁老人的寿 联。
【单选题】What maybe the reason why some Hispanics have jobs but uninsured?
A.
They are not interested in health insurance.
B.
They do not believe in the insurance system.
C.
Their employers refuse to enroll them in the welfare system.
D.
Their income is not enough for their share of the premium.
【单选题】下列气体中,既能用浓硫酸干燥,又能用氢氧化钠固体干燥的是
【多选题】城市规划行政主管部门与其他各行政主管部门是平行的职能机构。各个机构依据( ),各有其主管的事物范畴,互不覆盖。