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。
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。
Seven functions of views about chemical substance, which are motivation, choose, interpret, establish, transplant, creation and direction, have importance influences students' learning chemistry.
它所具有的动机、选择、解释、建构、迁移、生成和定势等七项功能对学生学习化学会产生重要影响。
This chocolate festival took place recently in McLean, Virginia. Visitors started by learning about cocoa beans, the main substance used in chocolate.
弗吉尼亚州的麦克莱恩最近正在举行巧克力节的庆祝活动。游客们在这里从了解巧克力中使用的主要原料可可豆开始。
Thus, the teaching and learning of the concept 'amount of substance' receive a growing concern by researchers over recent decades.
正因如此，近年来物质的量概念教学的研究受到教育研究者们广泛的重视。
Zhang Zhidong is among the important figures of the late Qing dynasty . His thoughts on Chinese learning as substance and western learning as function are mainly represented in his book QuanXuepian.
张之洞是晚清历史上的重要人物之一，《劝学篇》是集中体现其“中体西用”思想的一部著作。
Zhang Zhidong is among the important figures of the late Qing dynasty . His thoughts on Chinese learning as substance and western learning as function are mainly represented in his book QuanXuepian.
张之洞是晚清历史上的重要人物之一，《劝学篇》是集中体现其“中体西用”思想的一部著作。
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