单项选择题
A.1/5~1/4张 B.1/3~1/2张 C.1/3~2/3张 D.1/2-2/3张 E.2/3张至等张
A.30~50ml/kg B.40~60ml/kg C.60~80ml/kg D.80~100ml/kg E.100~120ml/kg
A.1/5张 B.1/3张 C.1/2张 D.2/3张 E.等张