学生主体性的基本结构主要包括( )
A.积极性、参与性和差异性 B.自主性、主动性和创造性C.自觉性、主动性和能动性 D.自觉性、能动性和多样性
参考答案:B
He is a model for us young people. We all _____ him very much. [ ]
A. look up to
B. look up
C. look at
D. look after
林木个体发育