问题
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The healthcare and social assistant sector will account for almost a third of the job g
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● (71) analysis emphasizes the drawing of pictorial system models to document and validate
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The founders of the Chicago school of sociology, Robert Park and Ernest Burgess, attempted
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Park and Burgess based their model of urban growth on the concept of "natural areas"—that
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Park and Burgesss model has come to be known as the "concentric-zone model"(represented by
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Studies by Park, Burgess, and other Chicago-school sociologists showed how new groups of i