Model		Non standardized coefficient		standardized coefficient	t	Sig.
Model		B	Standard error	Trial version	t	Sig.
1	(constant)	0.067	0.028		2.371	0.018
	Degree of difficulty	0.027	0.013	0.027	2.058	0.040
	Curriculum ideological and political	0.122	0.014	0.120	8.449	0.000
	Teachers-students interaction	0.048	0.014	0.048	3.400	0.001
	Class evaluation	0.094	0.014	0.093	6.787	0.000
	Teaching means	0.061	0.013	0.062	4.800	0.000
	Curriculum resources	0.061	0.014	0.061	4.490	0.000
	Teaching organization	0.147	0.014	0.148	10.608	0.000
	Curriculum assessment	0.142	0.014	0.141	10.163	0.000
	Teaching feedback	0.278	0.013	0.272	20.630	0.000