8/2/2013 
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How to Insert a YouTube Video to Online Presentation?
The unique advantage of online presentations is that they allow instant, real-time access to many Internet resources, such as YouTube...
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You view some presentations and apprehend all of the information. You view others and nothing is clear to you. Why?...
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I often come across some interesting .pps files with beautiful pictures in Internet, but I’m always bored with downloading it...