- 问题详情: WhenJeffSparkmandrawshiscartoonsuperheroeswithcoloredpencils, heoftenhastoaskotherpeopletotellhimwhatcolorhismaskedmenturnedouttobebecausehe'scolor-blind.Now,anewsmartphoneapplication(app)canhelphimfigureoutwhatcolorshe'susingandhowthe...
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