Although she believed that she had a good chance of recovering, the doctors said that few, _____ , could

come back to normal after getting this disease.

[       ]

A. if any

B. if so

C. if not

D. if ever

MAC与麻醉效能的关系为（）

A.MAC愈小，麻醉效能愈强

B.MAC愈小，麻醉效能愈弱

C.MAC与麻醉效能无明显关系

D.MAC与组织溶解度有关

E.MAC愈大，麻醉效能愈强