单项选择题
A.4℃B.8℃C.10℃D.25℃
A.0.3%、0.4%、0.2%B.0.2%、0.3%、0.4%C.0.3%、0.2%、0.4%D.0.2%、0.4%、0.3%
A.马口铁桶B.塑料桶C.纸袋D.塑料袋