Explorative Learning is the key to the introduction of secondary classroom teaching geography teachers must first change their concepts, will be put into practice and classroom teaching.
探究式学习引入中学地理课堂教学的关键就是教师首先要改变观念，并将其付诸于课堂教学实践中。
An outline introduction to the physical geography, meteorology and hydrologic character of its main branch was presented. The combination of flood and its characteristics were analyzed.
介绍了乌苏里江流域自然地理及气象概况，主要支流的水文特征，分析了乌苏里江的洪水组成及特点。
An outline introduction to the physical geography, meteorology and hydrologic character of its main branch was presented. The combination of flood and its characteristics were analyzed.
介绍了乌苏里江流域自然地理及气象概况，主要支流的水文特征，分析了乌苏里江的洪水组成及特点。
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