41.What structure is formed from both fetal and maternal tissue?
(A)chorion
(B)amnion
(C)yolk sac
(D)placenta

答案:登入後查看
統計: A(0), B(1), C(0), D(3), E(0) #3105089

詳解 (共 1 筆)

#7077771
1. 題目解析 本題的重點在於了解胎兒...
(共 871 字,隱藏中)
前往觀看
0
0