----Sunny said you were crazy about basketball, really?

----Yes. And that’s why I join the volunteers for the Olympic Games and I really _______volunteering.

A．get hold of

B．get along with

C．get away with

D．get a kick out of

血浆胶体渗透压的作用是（）

A.维持血管内外水平衡

B.维持细胞内外水平衡

C.维持动脉血压稳定

D.调节器官血流量

E.促进肾小球的滤过