简介：
A look at the early days of the crack cocaine epidemic in Los Angeles during the beginning of the 1980s小李对同学说：“我这次考试进步很大。”同学：“考了多少分？”小李：“上次考了20分，这次考了25分，整整提高了5分，这难道不是巨大的进步吗？”
A look at the early days of the crack cocaine epidemic in Los Angeles during the beginning of the 1980s小李对同学说：“我这次考试进步很大。”同学：“考了多少分？”小李：“上次考了20分，这次考了25分，整整提高了5分，这难道不是巨大的进步吗？”
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