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This is a gray ultra-widescreen, high-resolution commercial building slide background image. Free download of architectural PowerPoint background pictures;
Keywords: Gray modern city PPT background picture, high-rise building slide background picture, commercial building PowerPoint background picture
Introduction: Work summary plan ppt template, work overview, work co...
Brief introduction: doctor hat, pencil, notepad, small flower, noteb...
Introduction: The university is a book, library library, university ...
Description: Notebooks, books, hand-held books, speech bubbles, doct...
Brief introduction: ray, national flag, golden three-dimensional par...
Brief introduction: traditional Chinese style elements such as Drago...