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  3. Including a few bites of meat in the diets of poor children from developing countries improves both their health and their perfo

Including a few bites of meat in the diets of poor children from developing countries improves both their health and their perfo

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问题     Including a few bites of meat in the diets of poor children from developing countries improves both their health and their performance in mental tests, according to reports presented at this year’s annual meeting of the American Association for the Advancement of Science.
    In one study from rural Kenya,【C1】______found that children who ate【C2】______ounces of meat every day, along with their lunch of corn and beans,【C3】______better in problem-solving tests【C4】______children given supplements of milk or vegetable oil. This small【C5】______of meat gave children all their daily needs【C6】______vitamin B12, 68 percent of all they needed of zinc, and 26 percent of their daily iron【C7】______, the researchers noted.
    Dr. Howarth Bouis of the International Food Policy Research Institute in Washington D. C, told Reuters Health that research【C8】______children who don’t get enough iron, zinc and other【C9】______have a weakened immune system,【C10】______growth and cognitive impairments. And when entire generations of children aren’t getting enough nutrients,【C11】______can have implications nationwide, Bouis added.【C12】______, the World Bank estimates that micronutrient deficiencies【C13】______South Asia 5 percent of its GDP each year, he said. "When you can’t work【C14】______hard, you can’t think as well. It【C15】______from economic development, " Bouis said.
    He added that children in【C16】______countries don’t get enough nutrients【C17】______they can’t afford them, so it’s up to the government to【C18】______. For instance, the government could【C19】______programs that increase production of nutrient-rich foods, which【C20】______down the price, Bouis suggested.
【C7】
选项 A、experiments
B、requirements
C、supplements
D、installments
答案B
解析 由句中的连词and可知句子的前后两部分为并列关系，句子前部分是讲对vitamin B12以及zinc的需求，分别用了daily needs和all they needed来表达，因此and后应填一个need的近义词。四个选项：[A]experiments“实验，试验”、[C]supplements“补充，增刊”以及[D]installments“部分，分期付款”显然都与need的意思相差甚远，因此都可以排除；只有[B]requirements“要求，需要的东西”是need的近义词，放在此处表示对iron“铁”的需求，由此可断定[B]是答案。其他项都利用形近词进行干扰。
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