The second part puts forward the theoretical classfication and instrction of mathematical exercises because the compiler could use it as he needs in fact.
依据数学习题在理论上的分类及功能，使编者应掌握习题的这些分类和功能，以便根据实际需要来编制习题。
The second part puts forward the theoretical classfication and instrction of mathematical exercises because the compiler could use it as he needs in fact.
依据数学习题在理论上的分类及功能，使编者应掌握习题的这些分类和功能，以便根据实际需要来编制习题。
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