零基础电脑知识，掌握键盘标准指法，打字速度和准确率都可以提高

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VIDEOS
MP4	N/A	480P	Download
MP4	N/A	360P	Download
AUDIO
MP4	N/A	mp4a.40.2	Download
MP4	N/A	mp4a.40.5	Download
MP4	N/A	mp4a.40.2	Download
THUMBNAILS
	JPEG	Origin Image	Download