单项选择题
A.10mg/dl B.20mg/dl C.30mg/dl D.40mg/dl E.50mg/dl
A.肠道病毒 B.链球菌 C.大肠埃希菌 D.铜绿假单胞菌 E.肺炎链球菌
A.10mg/dl B.12mg/dl C.15mg/dl D.20mg/dl E.25mg/dl