保障信息的对称性，使医疗资源效益最大化。
Be sure of information symmetric, and the medical resources efficiency maximization.
本实验研究了道路交通标志中路名信息的对称性和布局方式对视认绩效的影响。
The present study explored the eye movement mode of symmetry effect in structure of road traffic signs.
逆向选择，是一种信息不对称性在其中导致了负面结果的市场过程。
Adverse selection is a market process where information asymmetry causes negative results.
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