正常情况下，肺通气阻力主要来自
A．惯性阻力 B．气道阻力C．粘滞阻力 D．肺回缩力E．肺泡表面张力
参考答案：E
35. —It took me ten years to build up my business, and it almost killed me.
—Well, you know what they say, “___________.”
A．There is no smoke without fire;
B．Practice makes perfect;
C．All roads lead to Rome;
D．No pains, no gains
“建设中国特色的社会主义”科学命题的明确提出是在党的( )。
A．十一届三中全会
B．十二大
C．十三大
D．十四大
