单选题Meatisanidealfoodforhumans,andfo

单选题 Meat is an ideal food for humans, and for mold(霉) and bacteria as well. When itis fresh, it is one of the best culture mediums. It consists of 20 percentprotein(蛋白质), fats, mineral matter and organic(有机的) compounds. The best of it is water. This combination ofmoisture(湿气) and solids makes it one of the most perishable(易腐败) of foods. Thebacteria produce discoloration and bad odors. The odor fills the meatwith black spots and other discolorations.The best title is ________.注:odor气味(smell) discoloration 变色的部分，污点A.Spoilage of meatB.Meat and moldsC.Ideal food for humanD.Fresh meat

A

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