从集合{O,P,Q,R,S}与{0,1,2,3,4,5,6,7,8,9}中各任取2个元素排成一排(字母和数字均不能重复).从集合{O,P,Q,R,S}与{0,1,2,3,4,5,6,7,8,9}中各任取2个元素排成一排(字母和数字均不能重复).每排中字母O,Q和数
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![从集合{O,P,Q,R,S}与{0,1,2,3,4,5,6,7,8,9}中各任取2个元素排成一排(字母和数字均不能重复).从集合{O,P,Q,R,S}与{0,1,2,3,4,5,6,7,8,9}中各任取2个元素排成一排(字母和数字均不能重复).每排中字母O,Q和数](/uploads/image/z/3674374-70-4.jpg?t=%E4%BB%8E%E9%9B%86%E5%90%88%7BO%2CP%2CQ%2CR%2CS%7D%E4%B8%8E%7B0%2C1%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C9%7D%E4%B8%AD%E5%90%84%E4%BB%BB%E5%8F%962%E4%B8%AA%E5%85%83%E7%B4%A0%E6%8E%92%E6%88%90%E4%B8%80%E6%8E%92%28%E5%AD%97%E6%AF%8D%E5%92%8C%E6%95%B0%E5%AD%97%E5%9D%87%E4%B8%8D%E8%83%BD%E9%87%8D%E5%A4%8D%29.%E4%BB%8E%E9%9B%86%E5%90%88%7BO%2CP%2CQ%2CR%2CS%7D%E4%B8%8E%7B0%2C1%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C9%7D%E4%B8%AD%E5%90%84%E4%BB%BB%E5%8F%962%E4%B8%AA%E5%85%83%E7%B4%A0%E6%8E%92%E6%88%90%E4%B8%80%E6%8E%92%28%E5%AD%97%E6%AF%8D%E5%92%8C%E6%95%B0%E5%AD%97%E5%9D%87%E4%B8%8D%E8%83%BD%E9%87%8D%E5%A4%8D%29%EF%BC%8E%E6%AF%8F%E6%8E%92%E4%B8%AD%E5%AD%97%E6%AF%8DO%2CQ%E5%92%8C%E6%95%B0)
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