Including a few bites of meat in the diets of poor children from developing

游客2024-09-24 26

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. [br] 【C9】

选项 A、nutrients
B、minerals
C、vitamins
D、vegetables

答案 A

解析由并列连词and可以断定空格处所填的名词应该与and前面的iron，zinc属于同类的东西。铁和锌都是食物中的营养元紊，[A]nutrients“营养品，滋养物”，指营养的来源，尤指食物中的营养成分，符合题意。[B]minerals“矿物，矿石”和[D]vegetables“蔬菜，植物”与铁和锌都不属于同类；如果选[C]vitamins“维他命，维生素”则就是认为铁和锌也是维生素，那就等于混淆了概念，显然不对。因此这几个选项都可以排除。

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