单项选择题
A.0.40‰ B.0.89‰ C.92.7% D.87.5% E.0.49‰
A.0.04‰ B.0.89‰ C.92.7‰ D.87.5‰ E.0.49‰
A.0.89‰ B.92.7% C.87.5% D.0.49‰ E.0.40‰