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cheng shi shi gan shi me de
Author(s): 
Pages: 30
Year: Issue:  3
Journal: Health Life

Keyword:  小商小贩交通事故城市人口超级大城市城市群新鲜的空气城市文明卫生城市统治者贸易;
Abstract: <正> 七年前我还在乡下读中学时从历史书上就了解到,城市最早的用途不是用来专门住人的,它是贸易集散地。由于贸易发达,有人远道而来,无法当天回去,必须歇宿,就发展了旅业,继而发展了小商小贩,他们是最早的城市人口,后来有了管理他们的人,就有了统治者的大驾光临。后来发展起来的城
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