首页
登录
职称英语
Although spinach is rich in calcium, it also contains large amounts of oxalic ac
Although spinach is rich in calcium, it also contains large amounts of oxalic ac
游客
2025-02-26
18
管理
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:http://tihaiku.com/zcyy/3973411.html
相关试题推荐
Althoughpartoftheivoryavailableonworldmarketswastakenfromwildelepha
AlthoughthehumanpopulationaroundtheforestlandinMiddlesexCountyhasincr
AlthoughDamonhadampletimeearlierinthemonthtocompletethepaperheiss
Kalehasmorenutritionalvaluethanspinach.Butsincecollardgreenshavemore
Airline:Newlydevelopedcollision-avoidancesystems,althoughnotfullytested
Althoughmeasuringtheproductivityofoutsideconsultantsisacomplexendeavor
Althoughaspirinhasbeenproventoeliminatemoderatefeverassociatedwithsom
Thetoxinproducedbycertainmarinesnailscontainsvariousproteins,oneofwh
Althoughthemanageragreedtoamoreflexibleworkschedule,hesaidthatitmu
Althoughfruitcannolongergrowonceitispicked,itcontinuesforsometime
随机试题
Readthearticlebelowaboutatechnologycompanyandthequestionsontheoppos
RussiaisthelargesteconomicpowerthatisnotamemberoftheWorldTradeOrg
Moresurprising,perhaps,thanthecurrentdifficultiesoftraditionalmarri
TheUSCongressA)TheUScongressisthelegislativebranchofthefede
[originaltext]Ihaveplantedgardensthroughartinstallationsthroughoutt
下列有关税收立法程序的说法,正确的是( )。A.通过的税收法律由全国人大常委会委
单纯二尖瓣狭窄患者可有A、左房扩大,右房缩小 B、右房扩大,左房缩小 C
在商业银行贷款重组过程中,以下表述正确的有()。A.“借新还旧”“还旧借新”
个体身心发展有两个高速发展期:新生儿与青春期,这是身心发展规律()的反映。
2001-59.心血瘀阻所致之心悸,治宜选用 A.丹参饮B.桃仁红花煎C
最新回复
(
0
)