class和subject的区别我是问用法上的区别。

class和subject的区别我是问用法上的区别。 课程CLASS和学科SUBJECT的主要区别是? subject和lesson的区别 main subject 与 single subject 的区别 class is over和after class的区别?class is over和after class的区别? class和lesson的区别 lesson和class的区别 private Class class=new Class();和private Class class;的区别 a class on a subject的意思 be contingent on和be subject to的区别 求What和Which的区别和用法?求What和Which的区别和用法,为什么提问有时用what有时用which?例如：Whst subject do you like和Which subject do you like?的区别 What subject和Which subject的差别 lesson.and.subject的区别. project与subject的区别 complete subject和simple subject有什么区别? accounting main subject和single subject有什么区别 bourgeois(n.)和middle class的区别? 问add to ,add up ,add up to,的区别和用法并解题His report has greatly __our knowledge of the subject.