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小美回来说,带着本本去上课,不料按了分屏键后,投影上有了图像,本本却“黑屏”了,折腾到下课也没有结果。郁闷!郁闷!问题在哪?
Small US back, with the books to class, but by pressing the split screen button, the projection has an image, books are “black screen ”, toss to the next get out of class no result. Depressed! Depressed! Where is the problem?