Science第 83 / 120 题
Which type of blood vessel carries blood away from the heart?
a.Veins
b.Capillaries
c.Arteries
d.Nerves
解析
Arteries carry oxygen-rich blood away from the heart to the body. Veins return blood to the heart, and capillaries connect the two, allowing exchange of gases. Nerves are not blood vessels at all.
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