单选题
The blood-gas barrier in alveoli may include each of the following EXCEPT?
A、
cytoplasm of a type Ⅱpneumocyte
B、
basal lamina of type Ⅰalveolar cells
C、
cytoplasm of a type Ⅰpneumocyte
D、
endothelium of a continuous capillary
E、
basal lamina of an endothelial cell
【正确答案】
A
【答案解析】
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