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China has a rich reserve of iron ores and hosts most of the major types of iron deposits recognized worldwide. However, among these, the banded iron formation (BIF), skarn, apatite–magnetite, volcanic-hosted, sedimentary hematite and magmatic Ti–Fe–(V) deposits constitute the most economically important types. High-grade iron ores (>50% Fe) are relatively rare, and are mostly represented by the...
In order to design a system that supports different teaching approaches, standardized courseware, real-time personalized learning environment and record and analysis of learning process, this article analyzes the SCORM, IMS-LD specifications and the characteristics of distance education in China. Moreover, based on the analysis and combining with the practice of Chinese distance education, a distance...
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