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This is a PPT background picture of the Golden House in the book;
Keywords: Golden city slide background picture, textbook book PowerPoint background picture
This is a yellow triangle PPT background picture; Keywords: yello...
This is a PPT background picture of business negotiation and coopera...
This is a background picture of a color wood slide; Keywords: Col...
This is a life science DNA chain PPT background picture with artisti...
This is a blue cool abstract curve PowerPoint background picture; ...
This is a set of blue flat DNA life science PPT background pictures;...