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Asian upscale couple dancing at lounge enjoying and smiling
High school students and their teacher using interactive whiteboard during a class.
Selecting excellent quality to increase customer satisfaction. Quality assurance management and control for products or services. Concept with QA manager's hand turning knob.
Multiethnic students analyzing plant experiment in school lab. Group of high school students in science laboratory understanding the study of roots. Classmates studying the growth of sprouts.
Smiling asian undergraduate teen girl student study in library with laptop books doing online research for coursework, making notes for essay homework assignment, online education e-learning concept

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