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
2014-07-25
38
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 " beriberi". 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 "beri-beri" —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.
The disease "beri-beri" ______.
选项
A、kills large numbers of Eastern peoples
B、is a vitamin deficiency(缺乏)disease
C、is caused by diseased rice
D、can be caught from diseased chickens
答案
B
解析
文意推断题。A项是对第二段第二句话的曲解,distress(使痛苦)不等于kill。C项和D项是对rice和chicken的曲解。根据第二段第一句话可知,这种病与restricted diet有关,而第一段说若只以restricted diet为食,需要额外补充维生素,因此可以推断出脚气病是因为缺乏维生素而引起的。
转载请注明原文地址:https://jikaoti.com/ti/TbaYFFFM
0
成人本科学位英语
相关试题推荐
Nancyhad(agreatdealof)trouble(toconcentrateon)herwork(becauseof)thenoise(in)thenextroom.
Theinterviewershouldtakedownnotesatthemomenttheperson______answersthequestions.
Thepresident(whom)thebankbelongs,promised(tokeep)alltheboardmembers(informed)of(how)thenegotiationsweregoing.
______you’vegotachance,youmightaswellmakefulluseofit.
(Under)nocircumstances(weshall)stop(the)research(we’ve)begun.
Theysuppliedthefirstlandanimalswithfoodnecessarytolive,sincetheyaretheonlyformoflifethatisabletogetands
同意这项建议的请举手。
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Ididn’tknowyourmobilephonenumber;otherwiseI______youthemomentIgottoWashington.
父母没有预料到孩子的问题是这样难回答。
随机试题
根据有效积温法则可以进行虫情预测预报。()
二氧化碳在血液中运输的方式有
A.呕吐不食,或呕吐清涎B.妊娠初期,恶心欲呕,晨起尤甚C.妊娠初期,呕吐酸水、苦水D.妊娠初期,呕吐痰涎,胸脘满闷E.妊娠初期,呕吐剧烈,于呕或呕吐苦黄水甚则血水
A、乳房放射状切口B、乳房梭形切口C、乳房下缘弧形切口D、乳晕部弧形切口E、乳晕边缘弧形切口乳房脓肿切开引流取
在人寿保险核保中,保险人考虑的最重要的因素之一是( )。
甲有限责任公司(以下简称甲公司)为增值税一般纳税人,适用的增值税税率为13%,产品售价均为不合税售价,产品销售成本按经济业务逐项结转。2019年1月1日所有者权益总额为5600万元,其中实收资本3000万元,资本公积1000万元,盈余公积600万
直角三角形斜边上的中线等于斜边长的一半。其判断形式是()
宋词按其风格分成哪两大派?(中山大学2010翻译硕士)
设α1=(1,2,1)T,α2=(2,3,a)T,α3=(1,a+2,-2)T,若β1=(1,3,4)T可以由α1,α2,α3线性表示,但是β2=(0,1,2)T不可以由α1,α2,α3线性表示,则a=________
AssoonasitwasrevealedthatareporterforProgressivemagazinehaddiscoveredhowtomakeahydrogenbomb,agroupoffirea
最新回复
(
0
)