翻译成中文：The difference between this format and the semi-block format is that it takes four spaces in the first line of eachparagraph of the body letter. The positions of other elements are quite similarto those in the semi-block.
翻译成中文：The difference between this format and the semi-block format is that it takes four spaces in the first line of eachparagraph of the body letter. The positions of other elements are quite similarto those in the semi-block.
辅助性T细胞在混合淋巴细胞反应中的作用可能与协助B细胞应答的辅助性T细胞作用非常相似。(similarto)
辅助性T细胞在混合淋巴细胞反应中的作用可能与协助B细胞应答的辅助性T细胞作用非常相似。(similarto)
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