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  3. The worldwide consumption of bakery products is increasing. Many populations that formerly relied solely on rice or coarser grai

The worldwide consumption of bakery products is increasing. Many populations that formerly relied solely on rice or coarser grai

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问题      The worldwide consumption of bakery products is increasing. Many populations that formerly relied solely on rice or coarser grains as their main source of carbohydrates show a preference for compounded bakery products as new industry and increased incomes make them more widely accessible. Japan is an outstanding example of countries following this trend. The United States has shown a steady downward trend in per capita consumption of cereal-based foods for many years, and the consumption of sweet bakery foods, such as cakes or pastry, has been increasingly displacing bread consumption.
     Probably 95% of the white bread sold in the United States is enriched with thiamin, niacin, riboflavin, and iron, and about 30% of the 50 states have laws requiring white bread enrichment. Formerly, calcium and vitamin D were frequently added to enriched bread, but lack of consumer demand and questionable nutritional benefit led to gradual phasing out of these enrichments. India has attempted to encourage consumption of protein-enriched bread, with some success. Except for research projects, little has been done in other countries, however. In areas where bakery products comprise a large proportion of the diet, they could provide an ideal vehicle for nutritional supplementation. The need for better quality protein in the daily diet occurs mostly in the developing countries, where carbohydrate foods -- usually cereals -- are the basic components of the diet and therefore the logical protein carriers.
From the passage, we learn that there is a worldwide trend towards______
选项 A、increasing the nutritional value of bread
B、increasing the consumption of protein
C、using bakery products as a source of carbohydrates
D、using grains, such as rice, as a source of carbohydrates
答案C
解析 “aworldwidetrend”指代的是文章头两句所讲的内容，即，以前很多国家的人们所摄人的碳水化合物主要来自于米饭或一些粗粮，而现在越来越多的人倾向于糕点。也就是说，糕点正逐渐成为碳水化合物的主要来源。
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