問題詳情

11. The fundamental cause of sickle-cell disease is a change in the structure of:

(A) blood.
(B)capillaries.

(C) hemoglobin.
(D)red cells.

(E)the heart.

參考答案

答案:99

統計:A:0,B:0,C:0,D:0,E:0

難度:計算中