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 1.上腔静脉superiorvenacava2.胸腺右叶rightlobeofthymus3.左心室leftventricle4.左主支气管leftprincipalbronchus5.左上肺静脉leftsuperiorpulmonaryvein6.左肺下叶inferiorlobeofleftlung (共 151 字) [阅读本文] >>