The table above gives the number of calories from the three different sources of calories in Puff-X cereal, and the energy yield in calories per gram for each of those sources. If one serving of Puff-X contains 110 calories, then grams of fat make up what percent of the total mass, in grams, of a serving of Puff-X?发布日期：2021-08-04
A.2%
B.8%
C.16%
D.53%
E.84%
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，也就是8%。