简单线性回归模型的变量有()
Only5_____ofthepopulationofAmerica_____farmers.
设A、B为同阶方阵,且r(A)=r(B),则()
You__________putyourcomputerinyourbedroom.
Youlooknotabitolderthanyoudid5yearsago.Howdoyou__________soyoung?
在一成员领土内向任何来自其他成员的服务消费者提供服务,这种国际服务贸易提供方式属于______
在行情预测过程中由已知的经济变量发展规律推出未知变量是基于()
Hiswholeschooleducation________only2yearsbecauseofhisillness.
Thenumberoftallbuildings__________greatlyinTianjininthelastfewyears.
--CanIspeaktoMrSmith,please?
--_________.Heisgivingatalkatameeting.