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- 三色球问题 若一个口袋中放有12个球,其中有3个红的。3个白的和6个黒的,问从中任取8个共有多少种不同的颜色搭配?-Three-color problem is the ball put a pocket there are 12 balls, including three red. Three white and six black, and asked to check any number of eight different colors?