1. A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb. To travel from the artery to the thumb and then back to the left ventricle, this red blood cell must pass through _______ .
(A) one capillary bed
(B) two capillary beds
(C) three capillary beds
(D) four capillary beds

答案:登入後查看
統計: 尚無統計資料

私人筆記 (共 1 筆)

私人筆記#8528616
未解鎖
題目翻譯: 一顆位於左臂動脈中的人類紅血...
(共 1744 字,隱藏中)
前往觀看
0
0