A premature infant has progressive difficulty in breathing and is diagnosed with respiratory distress syndrome. Which cells are deficient in synthesizing surfactant in this syndrome?
A、Alveolarcapillaryendothelial;
B、Bronchialmucous;
C、Bronchialrespiratoryepithelium;
D、TypeIIalveolar
发布时间：2025-07-21 00:44:45
