阿摩線上測驗
47. Interstitial fluid
(A) is the fluid inside the gastrovascular cavity of Hydra
(B) is the internal environment found inside an animal's cells
(C) is composed of blood
(D) provides for the exchange of materials between blood and body cells
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統計： A(0), B(0), C(0), D(1), E(0) #3389872
統計： A(0), B(0), C(0), D(1), E(0) #3389872
