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प्रश्न
During which of the following stages of the circulation of blood in a normal human being, the oxygenated blood is pumped to all parts of the body?
विकल्प
contraction of the left atrium
contraction of left ventricle
relaxation of the right atrium
relaxation of the right ventricle
MCQ
उत्तर
contraction of left ventricle
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