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  3. Every time a person eats something, he makes a nutritional decision. He accepts or rejects the food available to him at home for

Every time a person eats something, he makes a nutritional decision. He accepts or rejects the food available to him at home for

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问题     Every time a person eats something, he makes a nutritional decision. He accepts or rejects the food available to him at home for meals or snacks. Or he selects food for himself at many places in the community, such as supermarkets, drive-ins, restaurants, and food counters in drugstores. These selections make a difference in how an individual looks, how he feels, and how well he can work and play.
    When a good assortment of food in appropriate amounts is selected and eaten, the consequences are more likely to be a desirable level of health and enough energy to allow one to be as active as he needs and wants to be. When choices are less than desirable, the consequences are likely to be poor health or limited energy or both.
    Studies of diets of individuals in the United States show that food selection is a highly individual matter, even among young children. Furthermore, far too many individuals of all ages are making poor choices day after day and are either now living with the consequences or will be in the future.
    Nutritionists and workers in allied professions have been concerned about helping people learn to select and enjoy a wide variety of food combinations that can add up to a good diet.
    Most people believe that they are well-fed—that the choices they make are good ones. After all, they are not really sick; neither are they hungry. However, their nutrition is really poor in one respect or another. Milk and milk products, such as cheese, ice cream, buttermilk, and yogurt, are often neglected. Then people may leave out in their diets many fruits and vegetables, particularly those that are good sources of vitamins A and C. These include dark green leafy vegetables, deep yellow vegetables, citrus fruits and vegetables such as cabbages, tomatoes, and green peppers.
The underlined word "assortment" in Paragraph 2 can be replaced by "________".
选项 A、number
B、variety
C、quantity
D、amount
答案B
解析 根据第二段第一句“When a good assortment of food in appropriate amounts is selected and eaten, the consequences are more likely to be a desirable level of health and enough energy to allow one to be as active as he needs and wants to be. ”可知，当选择吃适量的各种各样的食物时，人就会身体健康、精力充沛。句中已经出现了in appropriate amounts(以合适的数量)，所以assortment应指种类方面。a good assortment of 意为“各种各样”，相当于a good variety of，a good number of：许多，后跟可数名词复数；a large quantity of：许多，其后既可跟可数名词复数，也可跟不可数名词；a good amount of：许多，后跟不可数名词。故选B。
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