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Which vein brings clean blood from the lungs into the heart?(a) renal vein (b) pulmonary vein (c) vena cava (d) hepatic vein
(a) renal vein (b) pulmonary vein (c) vena cava (d) hepatic vein
(b) pulmonary veinPulmonary vein brings oxygenated or clean blood from the lungs into the heart.
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