18. Which of the following develops the greatest pressure on the blood in the mammalian aorta?
(A) systole of the left ventricle
(B) systole of the left atrium
(C) diastole of the right ventricle
(D)diastole of the right atrium

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統計: A(0), B(1), C(0), D(0), E(0) #2788967