题目内容
Without realizing it, you've left a trace of information easily accessible to others starting back at the subway station.
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It doesn't matter because people you don't know don't have access to your information.
Your information can be divided into two categories—active and passive.
Your active data is the information about you that is being recorded without your knowledge.
中景主要表现被摄主体的形态和活动，可细腻的表现主体人物的神态。
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