1. 1到18岁骨龄身高表_男朋友每次见面都要做_74精品导航

        How easy is it to group people into “races” based on appearance? What about using individual traits? Does everybody classify the same way?

        Try your hand at "sorting" individuals and see if it matches how people think of themselves. Or explore how we might sort people by physical traits.



        Activities require the Flash 6 plugin.

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