Part IV set forth how to improve knowledge structure, strengthen learning means direction, develop picture's effection, improve exercises design and emend mistaken historical facts.
第四部分从完善知识结构、加强学法指导、开发图表效果、改进习题设计以及订正史事错误五个方面来阐述新历史教科书继续完善的问题。
During university, I constantly improve their knowledge structure, improve their overall quality.
大学期间，我不断完善自己的知识结构，提高自己的综合素质。
It also needs to have reasonable knowledge structure and broad knowledge accumulation for every leader to improve working skills, methods and avenues.
具有合理的知识结构和广泛的知识积累，不断地优化工作的技能方法与途径。
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