A. S. in China. But e. a. S. has three defects: defect of definition itself, defect of strategy characteristic and defect of studying on foreign ecological agriculture.
但是，生态农业的研究也存在三个缺陷：定义本身的缺陷、战略特色的缺陷和对国外生态农业研究的缺陷。
Based on the teaching work, in this article the teaching mode, cases studying methods, teaching methods, contents and assessment methods of E-Commerce case analysis were discussed.
根据教学工作的实践，对电子商务案例分析课程的教学模式、案例研究方法、教学方法、教学内容及考核方式等提出了一些看法。
This text on the basis of studying both at home and abroad, go on research on ultimate load capacity of reinforced concrete beam by layered F. e.
本文在国内外研究的基础上，采用分层有限元法对钢筋混凝土梁的极限承载力进行了研究。
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