A:(a2)3=a8
B:a8÷a4=a2
C:a3+a2=a5
D:a2•a3=a5
I like fruit as well as vegetables, because they are both good for my health.
梁启超说:“变法之本,在育人才;人才之兴,在开学校;学校之立,在变科举。而一切要其大成,在变官制。”他认为各方面改革中最重要的是 ( )