首页
登录
职称英语
Lack of Vitamin A is the leading cause of blindness among children in develo
Lack of Vitamin A is the leading cause of blindness among children in develo
游客
2023-07-02
20
管理
问题
Lack of Vitamin A is the leading cause of blindness among children in developing countries.
These children do not get enough Vitamin A in the food they eat.
In Africa, more than 3,000,000 children【B1】______blindness or sickness caused by lack of Vitamin A Scientists say sweet potatoes are rich in beta carotene(β-胡萝卜素)—the natural orange-colored【B2】______ that the human body needs to produce Vitamin A.
One recent study found that orange-colored sweet potatoes are an excellent food for families in southern and eastern Africa. Scientists from Kenya, Uganda and the International Potato Center in Peru【B3】______ the ten-year study. The scientists found that several kinds of sweet potatoes produce excellent harvests in some areas where Vitamin A【B4】______ is widespread. They said sweet potatoes provided large amounts of Vitamin A at a very low cost.
People in Africa liked the orange-colored sweet potatoes used in the study. Some people had thought Africans would not accept such potatoes because they are sweeter than 【B5】______ sweet potatoes. The traditional African sweet potato is white and 【B6】______ little or no beta-carotene. However, research studies and taste tests showed the new sweet potatoes are able to【B7】______ the local crops. Wanda Collins is a research【B8】______ at the International Potato Center. She says the study found that mothers in Africa accepted the orange-colored sweet potatoes. Women who knew the value of these potatoes continued to buy them when food【B9】______ caused price increases. Ms. Collins says the next step is to develop this【B10】______ crop in other areas of Africa. [br] 【B7】
选项
答案
compete with
解析
根据空格前的are able to可知,此空需填入原形动词成分。compete with“与……竞争”。
转载请注明原文地址:https://tihaiku.com/zcyy/2803159.html
相关试题推荐
BullyingandChildrenA)Whatyoursonisdescribingisb
BullyingandChildrenA)Whatyoursonisdescribingisb
BullyingandChildrenA)Whatyoursonisdescribingisb
BullyingandChildrenA)Whatyoursonisdescribingisb
Atschoolourchildrenaretaughttoaddupandsubtractbut,extraordinaril
Atschoolourchildrenaretaughttoaddupandsubtractbut,extraordinaril
Whenchildrenhitpuberty(青春期),theirabilitytolearnasecondlanguagedro
Whenchildrenhitpuberty(青春期),theirabilitytolearnasecondlanguagedro
Whenchildrenhitpuberty(青春期),theirabilitytolearnasecondlanguagedro
Whenchildrenhitpuberty(青春期),theirabilitytolearnasecondlanguagedro
随机试题
Mothersofteensaresuretoexperiencefeelingsofloss,resentment,angerand
[originaltext]ForalongtimeAmericanspreferredthingswhichweremasspr
商业银行每季度进行一次常规(),且结果逐步应用于董事会、高级管理层的有关决策
期货交易所的职责包括( )。 Ⅰ.提供交易场所、设施和服务 Ⅱ.为期货交易
引起中药霉变的微生物如真菌的最适宜温度为()。A.10℃以下B.20~30℃C
Thechangeinthatvillagewasmiraculou
每道题包含一套图形和四个选项,请从四个选项中选出最恰当的一项填在问号处,使图形呈
实施“限塑令”以来,有人“我行我塑”,效果不好,你怎么看?
可授予特殊使用级抗菌药物处方权的是A.具有高级专业技术职务任职资格的医师 B.
(2016年真题)根据《标准施工招标文件》,合同履行中可以进行工程变更的情形有(
最新回复
(
0
)