Thanks.O-钝，R-直，A-锐。第二问我得到七种。第三问12种我还没来得及想呢！能够证明这是完全无遗漏的吗？

来源: 皆兄弟也于 2010-10-17 17:37:53 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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