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chinese
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mathematics
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counting
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rule-of-sum
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title
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Rule of Sum
总和规则
总和规则
简单地说
,
Sum of Sum规定
,
如果我们有A做某事的方法和B做另一件事的方式而我们不能同时做两件事
,
那么有A + B方法可以选择其中一个动作。基本计数原则。