問題詳情

41. 'Which of the following respiratory systems is not closely associated with a blood supply?
(A) vertebrate lungs.
(B) fish gills.
(C) tracheal systems of insects.
(D) the outer skin of an earthworm.
(E) the parapodia of a polychaete worm.

參考答案

答案:C
難度:困難0.375
統計:A(0),B(1),C(3),D(2),E(1)

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