阿摩線上測驗
37. Essentially all exchange of gases and other materials between the circulatory system and tissues of the body or the outside
world (e.g., in the lungs) occurs in the ______ .
(A) lymphatic system
(B) veins
(C) capillaries
(D) arteries heart
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統計： A(1), B(1), C(24), D(0), E(0) #3321060
統計： A(1), B(1), C(24), D(0), E(0) #3321060
