肺毛细血管楔压<0.8kPa的原因是（）

A.心脏前负荷升高

B.有效循环血量不足

C.血管容量过多

D.血压过高

E.心肌收缩力减弱

—________?

—I like a small one.[ ]

A. Where is the country

B. What size pizza would you like

C. Why do you like panda best

D. Where are elephants from