题目内容
（请给出正确答案）
A、respiratory movement
B、pressure difference across the respiratory membrane
C、pressure difference between alveoli and atmosphere.
D、difference between pulmonary pressure and pleural pressure
E、difference between pulmonary pressure and atmosphere.
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A、pressure difference across the respiratory membrane
B、respiratory movement
C、pressure difference between alveoli and atmosphere.
D、difference between pulmonary pressure and pleural pressure
E、difference between pulmonary pressure and atmosphere.
A.fo=open(’’123.csv’’，’’r’’)
B.fo=open(’’123.csv’’，’’w’’)
C.fo=open(’’123.csv’’，’’x’’)
D.fo=open(’’123.csv’’，’’a’’)
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