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
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained lit
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained lit
admin
2019-11-17
61
问题
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year. This year the plantings are being seriously damaged by bollworms. Bollworms, however, are not necessarily developing resistance to the cotton’s insecticide. Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions. So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.
In evaluating the argument, which of the following would it be most useful to establish?
选项
A、Whether corn could be bioengineered to produce the insecticide
B、Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year
C、Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them
D、Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms
E、Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton
答案
B
解析
Argument Evaluation
Situation Although plantings of cotton bioengineered to produce an insecticide to combat bollworms were little damaged by the pests in previous years, they are being severely damaged this year. Since the bollworms breed on corn, and there has been more corn planted this year in cotton-growing areas, the cotton is probably being overwhelmed by the corn-bred bollworms.
Reasoning In evaluating the argument, which question would it be most useful to have answered? The argument states that the bioengineered cotton crop failures this year (1) have likely been due to the increased corn plantings and (2) not due to the pests having developed a resistance to the insecticide. This also implies (3) that the failures are not due to some third factor.
It would be useful to know how the bioengineered cotton is faring in comparison to the rest of this year’s cotton crop. If the bioengineered cotton is faring better against the bollworms, that fact would support the argument because it would suggest that the insecticide is still combating bollworms If, on the other hand, the bioengineered cotton is being more severely ravaged by bollworms than is other cotton, that suggests that there is some third cause that is primarily at fault.
A This would probably be useful information to those trying to alleviate the bollworm problem in
bioengineered cotton. But whether such corn could be developed has no bearing on what is causing the bioengineered cotton to be damaged by bollworms this year.
B Correct. If bollworm damage on non-bioengineered cotton is worse than usual this year, then bollworm infestation in general is simply worse than usual, so pesticide resistance does not need to be invoked to explain the bollworm attacks on the bioengineered cotton.
C Even if other crops that have been bioengineered to resist pests have not successfully resisted them, that fact would not mean that the same is true of this cotton. Furthermore, the facts already suggest that the bioengineered cotton has resisted bollworms.
D Whether other types of pests often damage bioengineered cotton has no bearing on why bollworms are damaging this type of cotton more this year than in the past.
E This, too, might be useful information to those trying to alleviate the bollworm problem in bioengineered cotton, but it is not particularly useful in evaluating the argument. Even if there are pesticides that could be used against bollworms that have developed resistance to the insecticide of the bioengineered cotton, that does not mean that such pesticides are being used this year.
The correct answer is B.
转载请注明原文地址:https://jikaoti.com/ti/O6dYFFFM
本试题收录于:
GMAT VERBAL题库GMAT分类
0
GMAT VERBAL
GMAT
相关试题推荐
He______thathecouldcreatelivefishoutofchemicals.
Extensivenewstudiessuggestthattheworldhasmadeextraordinaryprogressinreducingpovertyinrecentdecades.Theresearch
WeallknowthatDNAhastheabilitytoidentifyindividualsbut,becauseitisinherited,therearealsoregionsoftheDNAstr
Extensivenewstudiessuggestthatdieworldhasmadeextraordinaryprogressinreducingpovertyinrecentdecades.Theresearch
SpeakerA:So,what’sthestatusofouradvertisingcampaign?SpeakerB:AsImentionedbefore,it’llbeanationalcampaignsta
Generallyspeaking,employersarelookingfortwothingsinjobapplicants:proofthatacandidatecanhandleaspecificjoband
ABritishteenagerhasbecomeamulti-millionaireaftersellinganapplicationsoftwarehecreatedtowebgiantYahoo.Thedeal
Afterspendingafewminutesonacrowdedcitystreet,thebrainislessabletoholdthingsinmemory,andsuffersfromreduced
Byadoptingafewsimpletechniques,parentswhoreadtotheirchildrencangreatlyincreasetheirchildren’slanguagedevelopme
Harmoniousmarriage,however,doesnotnecessarily______muchsharingofinterestsandresponsibilities.
随机试题
A、Avisittoaprison.B、Atalkwithsomemiserableslaves.C、Theinfluenceofhisfather.D、HisexperienceinthewarbetweenP
如何排除自动变速器升档、降档时滞过长故障?
下列比较低级和松散的区域经济一体化形式是
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedthat
关于磺脲类药物,下列何种说法错误
皮肤黏膜的表皮内鳞状细胞癌称为
自有固定资产和租人固定资产是按照固定资产的所有权来分类的,租入固定资产的所有权仍属于出租单位,但企业拥有其使用权和实质性的控制权。()
李先生拟在本地的一家中学建立一项永久性的奖学金.每年计划颁发奖金8000元。假设该基金能获得固定利率6%,则李先生现在最少应当存人()元。
下面谱例选自歌曲《前门情思——大碗茶》,它融入了哪种传统曲艺元素?()
设随机变量X的概率密度为对X作两次独立观察,设两次的观察值为X1,X2,令(Ⅰ)求常数a及P{X1<0,X2>1};(Ⅱ)求(Y1,Y2)的联合分布.
最新回复
(
0
)