The guarantee system is key to smoothly implementing flexible learning system in secondary vocational school.
研究者们至今对自学考试是考试制度、教育制度还是学习制度，仍存在争议。
It's all a lot harder to understand in text than in application, but the result is a flexible layout system with a rather steep learning curve.
这用语言也许很难描绘，但只要动手实践便不难理解。最后的结果是布局系统十分灵活，但学习起来却比较困难。
The rule based expert system, which regarded the decision tree as the learning mechanism has the characteristic of comprehensible flexible and constructed rapidly.
以决策树作为学习机制构建以规则为中心的专家系统，具有易理解性、灵活性，构造速度快等特点。
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