单项选择题
A.0~15℃B.15~30℃C.30~45℃D.45~60℃
A.0.6~1.2B.0.7~1.4C.0.8~1.6D.1.0~2.0
A.0.5~1.0B.2.0~3.0C.5.0~7.0D.8.0~10.0