Which determines the computer multimedia teaching has both positive and negative role, can not fully replace the traditional text, blackboard teaching.

由此决定了计算机多媒体教学也有积极和消极两个方面的作用，不可能完全代替传统的文字、黑板教学。

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The teaching of computer multimedia often needs to use the images that are captured from computer's screen to make courseware, or to magnify some local content in screen during teaching.

多媒体教学常需要使用从计算机屏幕上截取的图片制作课件，或在教学过程中放大显示屏幕某个局部内容。

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The teaching of computer multimedia replaces the traditional teaching way in class with its rich content and lively condition, and creates a new way of teaching methods.

计算机多媒体教学以其丰富的教学内容，形象生动的教学情境，逐步打破传统的“粉笔加黑板、课本加笔记”的教学方式，构建起新型的教学模式。

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