52.表面張力素(surfactant)是由下列那個細胞所分泌?
(A)type I cell
(B)type II cell
(C)endothelia cell
(D)interstitial cell
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統計: A(4), B(375), C(1), D(0), E(0) #2408676
統計: A(4), B(375), C(1), D(0), E(0) #2408676