• 1. ABCB: 北京全犬种俱乐部 | 将错就错 | 建筑规范委员会 | 全犬种俱乐部
• 2. ABCC ABAB AABB ABAC ABCB: 成语之首

• 1.A quatrain may also be any group of four lines unified by a rhyme scheme. Quatrains usually follow an abab, abba, or abcb rhyme scheme.
  四行诗通常是通过押韵组合成的四行诗节的诗，亚运形式一般为abab， abba，或abcb。
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• 2.Methods Rabbit marrow stem cells (MSCs) were cultured and expanded in vitro. The MSCs were mixed with acellular bovine cancellous bone (ABCB).
  方法：体外扩增诱导兔骨髓基质干细胞，将其与去细胞牛松质骨复合培养。
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