When do you think _____?    [ ]

A. the bus will come    

B. the bus is come    

C. will the bus come    

D. will come the bus

肺泡表面活性物质减少将会使

A．肺弹性阻力减小
B．肺顺应性增大
C．肺泡内液体层表面张力减小
D．小肺泡内压大于大肺泡内压
E．肺毛细血管内液体不易渗出