【简答题】A compound is a unit consisting of more than one stem and functioningboth ________ and ______ as a single word.
【判断题】Formula mass is the sum of the atomic masses (in amu) in a formula unit of an ionic compound.
【单选题】The compound which does not belong to one carbon unit as follow is.
【单选题】2016年8月10日,王某初次就业即到甲公司工作。2018年1月10日,王某向甲公司提出当年年休假申请,王某依法可享受的年休假天数为( )。
【简答题】模型A:lnY=-0.6+0.4X;r 2 =0.85;模型B: =1.3+2.2X;r 2 =0.73。模型A更好一些,因为它的r 2 大。
【判断题】模型A:lnY=-0.6+0.4X;r 2 = 0.85;模型B:Y=1.3+2.2X;r 2 =0.73模型A更好一些,因为它的r 2 大。
【单选题】A ____is a small, uncharged individual unit of a compound formed by the union of two or more atoms.