【单选题】将一年四个季度对因变量的影响引入到模型中(含截距项),则需要引入虚拟变量的个数为()
【单选题】将一年四个季度对因变量的影响引入到含截距的回归模型中,则需要引入虚拟变量的个数为
【单选题】--How soon will you be able to finish your homework? -- ______.
【单选题】托尔斯泰的世界观发生激变以后,他 ( )
A.
由贵族地主阶级的世界观转为激进的资产阶级的民主主义者的世界观
C.
由贵族地主阶级的世界观转为空想社会主义者的世界观
D.
由贵族地主阶级的世界观转为宗法制农民的世界观
【单选题】After a _____ discussion, they came up with a new ____ to the study of physics. [ ]
【单选题】-- How soon will you be able to finish your homework?--______.
【单选题】The doctor had to work for ___after twelve o'clock.