获取当前记录的集合中的全部属性字段。

Gets all the attribute fields in the collection for the current record.

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检查当前记录的数据字段。

Examine the data fields of the current record.

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堆栈也在页面上显示，指针标记的当前记录用粗体显示。

The stack will be displayed on the page, and the item identified by the current pointer will be highlighted in bold.

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So for each student the tutor builds a model of that Student's current state what the computer thinks they Know and doesn't know, and tries to present the student options that best meet what the tutor thinks are the student's need at that moment.

因此辅导系统会给每个学生,创建一个模型记录他们当前的学习状态,判断他们已经掌握和还不了解的知识,然后给出此时导师认为,最符合他们需要的选择。

麻省理工公开课 - 媒体、教育、市场课程节选