10.肺動脈幹(pulmonary trunk)在何處分支成左和右肺動脈(pulmonary artery)?
(A)降主動脈(descending aorta)後方
(B)肺靜脈(pulmonary vein)後方
(C)上腔靜脈(superior vena cava)右側
(D)主動脈弓(aortic arch)下方
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統計: A(2), B(0), C(0), D(4), E(0) #3488678
統計: A(2), B(0), C(0), D(4), E(0) #3488678