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ling shou shang de zhi hui
Author(s): 
Pages: 52-53
Year: Issue:  4
Journal: World Vision

Abstract: 在商场或超市里,当人们浏览、选购陈列架上的各种商品时,或许没有想到,一些人正躲在一面单向镜子的后面,观察着他们的行踪和对商品的反应,隐藏的摄像设备则记录下他们的一举一动。
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