問題詳情

16. Which of the following respiratory systems is not closely associated with a blood supply?
(A) the tracheal system of an insect
(B) the skin of an earthworm
(C) the gills of fishes
(D) the skin of an amphibian
(E) the lungs of a vertebrate

參考答案

答案:A
難度:適中0.615385
統計:A(8),B(4),C(0),D(1),E(0)

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