Student hands touching to lightbulb which have mechanical gear inside on open book for creative thinking of problem solving and education knowledge concept.

Student hands touching to lightbulb which have mechanical gear inside on open book for creative thinking of problem solving and education knowledge concept. stock fotó, képek és stock-fotózás. Image 189405681.

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Student Hands Touching To Lightbulb Which Have Mechanical Gear Inside On Open Book For Creative Thinking Of Problem Solving And Education Knowledge Concept. Royalty Free Stock-fotók, Képek és Stock-fotózás. Image 189405681.

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Student hands touching to lightbulb which have mechanical gear inside on open book for creative thinking of problem solving and education knowledge concept.

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