1. in the presentation of the contents of a group lesson with 88.33 percent seen studies which found the meat proposals are sorted from easy to hard to find content in easy-to-understand lessons. 2. Design the study group saw the screen with the number of 93.57 percent by number and size of the text can be easily read and suited clearly the color of the background with the letters with the appropriate image and sound are suited. 3. side navigation to study groups, lessons in see, with 97.5 percent found the menu button.Various means of media and pages can be linked to properly.
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