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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.
【C8】
选项 A、says
B、tells
C、shows
D、proves
答案C
解析 通过分析句子可知此句是一个宾语从句，从句的主语是research，宾语是空格后面的整个部分。分析四个选项：[A]says“说，表达”，研究本身不能说，更不能表达什么，因此[A]不正确；[B]tells含义是“讲述某件事”，常常指用语言给出详细描述，研究不能说话，也不能辨别，因此[B]也可以排除；[D]proves“证实，证明”，指通过提供论据或证据来确立真实性或有效性，是对已有的理论或猜测的进一步证实。而此处的研究调查结果不是证实了孩子们不吃肉会出现的不良症状，因此也不符合题意；[C]shows“说明，显示，展出”，表示通过推理或程序“向…演示，告知…”，与主语research搭配最恰当，因此正确。
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