— It's too difficult to finish the work in three hours.

— I think so. Let's _____. [ ]

A. work harder

B. go home

C. take exercise

脾和肾的关系主要体现在

A．先天和后天的相互资生、促进

B．先天和后天的相互转化、制约

C．水液的代谢和气血的生成

D．气血的生成和津液的输布

E．水液的代谢和呼吸运动