首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食),including a variety of fruits and gree
The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食),including a variety of fruits and gree
admin
2012-09-11
29
问题
The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食),including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet that it is necessary to make special provision to supply the missing vitamins.
An example of the dangers of a restricted diet may be seen in the disease known as "beri-beri". It used to distress large numbers of Eastern peoples who lived mainly on rice. In the early years of this century, a scientist named Eijkman was trying to discover the cause of "beri-beri". At first he thought it was caused by a germ. He was working in a Japanese hospital, where the patients were fed on polished rice which had the outer husk (外壳) removed from the grain. It was thought this would be easier for weak and sick people to digest.
Eijkman thought his germ theory was confirmed when he noticed the chickens in the hospital yard, which were fed on leftovers (剩饭) from the patients’ plates, were also showing signs of the disease. He then tried to isolate the germ, but his experiments were interrupted by a hospital official, who declared that the polished rice, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap rice with the outer layer still on the grain.
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unpolished rice somehow prevented or cured "beriberi"—even that a lack of some element in the husk might be the cause of the disease. Indeed this was the case. The element needed to prevent "beri-beri" was shortly afterwards isolated from rice husks and is now known as vitamin B. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.
A good mixed diet______.
选项
A、normally contains enough vitamins
B、still needs special provision of vitamins
C、is suitable for losing weight
D、is composed of fruits and vegetables
答案
A
解析
本题考查考生对文章细节的理解。根据关键词定位到第一段第一句话,可知混合性的食物一般来说能够提供足够的维生素。因此选择A。B项张冠李戴,应该是restricted diet需要特别补充。C项未提到。D项由蔬果组成,显然也不对,因为后文还提到了rice。
转载请注明原文地址:https://jikaoti.com/ti/EZiYFFFM
0
成人本科学位英语
相关试题推荐
TheAmericansocietyis______anexceedinglyshakyfoundationofnaturalresources,whichisconnectedwiththepossibilityofa
Itisstrangethatsomanyoftheimportantmeetingsinpeople’slivestakeplacequitebychance.Icouldhavesat【C1】______in
Intheory,thebestwaytolearnaforeignlanguageisthesamewayababylearnstospeak;______inpracticeit’snotalwaysfe
Humansreadilychangetoolstosuitthecircumstances:onceabasicknowledgeoftool-makinghasbeenacquired,itisasimplem
Thesecretoftheirwinemakinghasbeen______sincethe18thcentury.
Nowscientistscannotrealize______soonthatexistingscientificknowledgeisnotnearlysocomplete,certainandunalterablea
Withthepossibleexceptionofequalrights,perhapsthemost【C1】______issueacrosstheUnitedStatestodayisthedeathpenalt
Attheageof16,theadolescentis______certainadultrightswhichincreasehissocialstatusbyprovidinghimwithmorefreedo
Man:Didyounoticeafteralmost10yearsintheUnitedStates,Mr.LeestillspeaksEnglishwithsuchastrongaccent.Woman:Y
Collegehasmanysocialattractions,someofwhichcanbedistractions.Sports,concerts,parties,anddormitorybull(废话)session
随机试题
发生调节时,眼内哪些组织发生了形态和结构的改变
起重机吊装载荷是指()。
甲公司采用计划成本进行材料的日常核算。2008年12月,月初结存材料计划成本为200万元,成本差异为超支4万元;本月入库材料计划成本为800万元,成本差异为节约12万元;本月发出材料计划成本为600万元。假定甲公司按月末材料成本差异率分配本月发出材料应负
期货公司分支机构终止的,应当先行妥善处理公司债权债务,结清期货业务并终止经营活动。()
以下资料选自2009年7月中国建筑股份有限公司首次公开发行A股的发行公告。中国建筑首次公开发行不超过120亿股人民币普通股(A股)的申请已获中国证券监督管理委员会证监许可2009627号文核准。本次发行的保荐人是中国国际金融有限公司。本次发行采用
组团社委托接地社组织、落实旅游团活动的契约性文件、导游人员了解旅游团和接待社计划的主要依据是()
学校文化的功能主要体现在______、_____、_____和_____等四个方面。
被誉为中国现代毕异的科学家是()
数据库应用系统投入运行后,应用系统进入运行管理与维护阶段。设某学生管理系统在运行管理与维护阶段有如下工作:Ⅰ.定期检查数据文件的存储空间占用情况,并根据需要分配存储空间Ⅱ.分析数据库中各种操作,以发现潜在性能问题Ⅲ.将数据库中
A、Becauselearnersarecomplicatedandhardlyanalyzable.B、Becauselearnerstendtograspallthelearningstyles.C、Becausele
最新回复
(
0
)