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This is a PPT background picture of the desk in front of the blackboard;
Keywords: black and white, lecture table, apple, chalk, textbook slide background image
This set of logistic management work summary report PPT template use...
This set of PPT templates for the Red Chinese Wind Rat Year Enterpri...
This set of communication skills PPT courseware uses an urban backgr...
This set of nurses' recruitment PPT templates uses a small fresh...
This set of eight courtesy and four ceremonies PPT courseware uses c...
There are all kinds of accidents and injuries in our daily lives, an...