25. In mammals, which of the following vessels transports oxygenated blood from the lung back to the heart?
(A) pulmonary artery
(B) pulmonary vein
(C) superior vena cava
(D) coronary artery
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統計: A(0), B(3), C(0), D(0), E(0) #3477267
統計: A(0), B(3), C(0), D(0), E(0) #3477267