学校道德教育应该通过反思性道德学习，帮助学生形成初步的道德智慧，为学生适应在熟悉与陌生、虚拟与现实的空间中穿行的现代生活做准备。

The moral education in schools should help students form the preliminary moral wisdom by reflective moral study and make students ready for the life in familiar or strange, virtual or real space.

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本文在超文本学习状态空间中引入逆连接，从而在超文本状态空间的数学模型框架中，引入虚拟答疑概念，并给出一个问题答疑算法。

We define inverse links in hypertext learning state space and define virtual teacher concept. Then we get a seeking answer method in hypertext learning state space.

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网络虚拟空间的学习与教学是全球关注的一个教育热点。

Learning and teaching in Internet cyberspace is a worldwide focus in educational field.

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