According to an ecosystem'sessential function of substance circulation, energy exchanges and information transfer, the paper analyzes the function of E-Learning ecosystem.
根据生态系统的物质循环、能量流动和信息传递三大基本功能，分析了网络学习生态系统的功能。
2
Compared with labor of substance production, the labor of learning has various characteristics.
与物质生产劳动相比较，学习劳动明显表现出多方面的特征。
3
Seven functions of views about chemical substance, which are motivation, choose, interpret, establish, transplant, creation and direction, have importance influences students' learning chemistry.