摘 要: | About ten men in ev-ery hundred have thetrouble of colour blindnessin some way. Women areluckier, only about five inevery hundred are affected(影响) in this matter.Perhaps, after all, it is saferto be driven by a woman.There are differentshapes of colour blindness.For example, a man maybe able to see deep red.He may think that red, orangeand yellow are all shades(阴影)of green. Sometimes a personcannot tell the difference be-tween blue and green. Only a fewunlucky men may see everythingin sh…
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