造口袋内()满时,宜排放造口袋内排泄物

造口袋内()满时,宜排放造口袋内排泄物

A.2/3-1/2

B.1/2-2/3

C.1/3-1/2

D.1/4-2/3

E.1/2-3/4

正确答案是C