A. To avoid being overweight, people should eat nonfat food. B. Nonfat and regular food have no difference in calories. C. Americans think it necessary to count calories of food. D. We can eat nonfat food as much as we like. 参考答案:C 答案解析:[解析] 推理判断题。从文章内容可知:脂肪中所含卡路里较多,但美国人由于过量食用卡路里少的食物,较之有些无脂肪的食物中由于糖分的添加而使卡路里摄入量加大而导致肥胖。由此推知,美国人认为有必要计算食物中