34.胎盤障壁(placental barrier)由那些結構組成:①胎兒微血管內皮細胞(endothelium of the fetal capillaries in the villi) ②
融合細胞滋養層(syncytiotrophoblast) ③細胞滋養層(cytotrophoblast) ④胚體外中胚層(extraembryonic mesoderm)
(A)①
(B)①②
(C)①②③
(D)①②③④
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統計: A(30), B(37), C(150), D(1367), E(0) #1384903
統計: A(30), B(37), C(150), D(1367), E(0) #1384903