A、Because they are concerned about their weight.
B、Because they are allergic to milk products.
C、Because they have a lot of health problems.
D、Because they frequently complain about their food.
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试题解析
录音中讲到“一些人限制饮食是因为他们对牛奶或小麦制品过敏,或其他健康原因”,“很多人试着减少饮食是为了努力减肥”(lots of people try reducing diets in an effort to lose weight),所以很多人限制或减少饮食是因为他们关心自己的体重。