要做好班主任工作，就必须掌握和贯彻一些基本原则，这些原则主要包括（）、因材施教原则等方面。

A.学生主体原则

B.启发疏导原则

C.集体教育原则

D.爱严相济原则

The lecturer says that he will first look at how some cultural values influence 31 ______ and that then he will 32 ______ demonstrating that approaches to learning in one culture may not be considered suitable in others.