問題詳情

33. Which of the following is absent from the wall of small-diameter (~ 1 mm) bronchioles?
(A) Epithelium
(B) Cartilage
(C) Smooth muscle
(D) Blood vessels
(E) Elastic fiber

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增