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
Although spinach is rich in calcium, it also contains large amounts of oxalic acid, a substance that greatly impedes calcium abs
Although spinach is rich in calcium, it also contains large amounts of oxalic acid, a substance that greatly impedes calcium abs
admin
2014-10-21
41
问题
Although spinach is rich in calcium, it also contains large amounts of oxalic acid, a substance that greatly impedes calcium absorption by the body. Therefore, other calcium-containing foods must be eaten either instead of or in addition to spinach if a person is to be sure of getting enough calcium. Which of the following, if true, most seriously weakens the argument above?
选项
A、Rice, which does not contain calcium, counteracts the effects of oxalic acid on calcium absorption.
B、Dairy products, which contain even more calcium than spinach does, are often eaten by people who eat spinach on a regular basis.
C、Neither the calcium nor the oxalic acid in spinach is destroyed when spinach is cooked.
D、Many leafy green vegetables other than spinach that are rich in calcium also contain high concentrations of oxalic acid.
E、Oxalic acid has little effect on the body’ s ability to absorb nutrients other than calcium.
答案
A
解析
本题根据Spinach中的Oxalic acid能阻碍人体对钙的吸收,做出了其他含钙的物质应该被食用的结论。要对本题的结论构成反对,就要从Oxalic acid入手。既然Oxalic acid能阻碍人体对钙的吸收,那么有没有其他的物质能抑制Oxalic acid的这种对人体吸收钙的不良影响?(A)选项指出大米可以与Oxalic acid中和,对结论成立的前提进行了削弱,从而对结论进行了削弱。因此(A)为正确答案。(B)、(C)、(D)、(E)都不能对本题结论成立的前提构成反对。
转载请注明原文地址:https://kaotiyun.com/show/FetO777K
本试题收录于:
GMAT VERBAL题库GMAT分类
0
GMAT VERBAL
GMAT
相关试题推荐
Afteralong______thebillwaspassedbythepeople’scongress.
______,thenewmedicineisnowinmassproduction.
Ineverycultivatedlanguagetherearetwogreatclassesofwordswhich,takentogether,comprisesthewholevocabulary.First,
Overtenpeoplediedandtwentypeoplewere______woundedinthetraincrash.
It’simpossibleforanyonetobe______bysuchanobviouslie.
Waterprobleminthefuturewillbecomemoreintenseandmorecomplex.Ourincreasingpopulationwilltremendouslyincreaseurba
Todayanyonewillacceptmoneyinexchangeforgoodsandservices.Peopleusemoneytobuyfood,furniture,books,bicyclesand
Oneofthebestpiecesofmedicalnewstoemergeoverthelastseveralyearsisthatchocolatemay【C1】______youlivelonger,pro
StoneAgepotterscraftedcomplicatedandoftendelicateceramicpots,tools,andjewelry.Theyalsocraftedcrudepotteryfigur
Theretinasofprematurebabiesarenotfullydevelopedatbirth.Becausetheirretinasaresodelicate,prematurebabiessometi
随机试题
我国多党合作的首要前提和根本保证是()
一商家销售某种商品,其价格函数为P(x)=7-0.2x,其中x为销售量(千克),商品的成本函数是C(x)=3x+1(百元).若每销售一千克商品,政府要征税t(百元),求商家获得最大利润时的销售量?
既能止咳化痰,又能润肠通便的药物是()
G1P0,孕33周,因先兆早产入院,抑制宫缩治疗已一周,子宫仍敏感,曾肌注地塞米松,治疗两天,今做NST检查,为无反应型,首选的方案为
婴儿开始添加淀粉类食物的月龄是
结构化面试提纲的设计,实际上是结构化面试过程中所要提问的问题的设计,它的主要依据是()。
协调机制伴随着政府权力运行的每一个环节和层次,协调机制的目的是不断调整政府与市场、社会的关系,实现社会资源的优化配置、公共事务的良好治理,增强政府系统对外界环境的敏感性与回应性,提高政府权力运行的合法性与有效性。下列属于政府系统与外部环境系统协调方法的是(
A.上颌前部片B.下颌横断片C.上颌后部片D.华特位片E.铁氏位片常用于检查下颌骨体部骨质有无颊、舌侧膨胀,可显示下颌体和牙弓横断面影像的X线平片是()。
最近的一项研究发现,每天喝两杯以上咖啡的从事久坐工作的中年男子比其他从事久坐工作的中年男子更可能血液胆固醇含量高,而胆固醇是患心脏病可能性增加的一个因素。胆同醇能够由饮食进入血液,但咖啡中不含该物。下面哪项如果正确,能最严重地削弱该研究的一个结论:咖啡增加
Overthepast30years,thechildhoodobesityrateintheUnitedStateshasdoubledforchildrenandtripledforadolescents.Si
最新回复
(
0
)