Peyer's patches, located in the lowest portion of the small intestine, are regions of lymphatic tissue in the intestinal wall that identify antigens within the intestine and facilitate the immune response to them.
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Aare regions of lymphatic tissue in the intestinal wall that identify antigens within the intestine and facilitate
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Bby means of regions of lymphatic tissue in the intestinal wall which identify antigens within the intestine, facilitating
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Care regions of lymphatic tissue in the intestinal wall and, as such, are identifiers of antigens within the intestine, facilitating
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Dbeing regions of lymphatic tissue in the intestinal wall, identifying antigens within the intestine, and facilitating
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Eregions of lymphatic tissue in the intestinal wall which identify antigens within the intestine and are facilitating
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正确答案: A