There are two small rods with a length of 5 cm. If a triangle is formed by adding a small rod, how many possible lengths are there for the added rods? (The length of the small stick is rounded up to centimeters)
有两根长度都是5厘米的小棒，如果添一根小棒围成一个三角形，那么所添小棒的长度有多少种可能．(小棒的长度取整厘米数)
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