单项选择题
A.0.6%-1.0%B.0.5%-2.0%C.0.5%-1.0%D.0.6%-2.0%
A.1.0%B.2.0%C.3.0%D.4.0%
A.0.5~2.0B.0.6~2.1C.0.7~2.3D.0.9~2.4