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据美国一位眼科医生统计全世界约有2.4亿色盲忠者,其中男子竞占了98%。虽然女子很少患有5色盲,然而她们却常常是“色盲因子”的携带者,
According to an ophthalmologist in the United States, there are about 240 million color blind people in the world, of whom 98% occupy men. Although women rarely suffer from color blindness, they are often carriers of “color blindness factors”