問題詳情

44. Moment-to-moment changes in total peripheral resistance are normally due to changes in
(A) the viscosity of blood.
(B) the radius of certain blood vessels in the systemic circuit.
(C) the lengths of blood vessels in the systemic circuit.
(D) the cardiac output.

參考答案

答案:B
難度:適中0.606061
統計:A(2),B(20),C(0),D(7),E(0)

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