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
Researchers discovered that plants infected with a virus give off a gas that______disease resistance in neighboring plants.
Researchers discovered that plants infected with a virus give off a gas that______disease resistance in neighboring plants.
admin
2013-09-28
52
问题
Researchers discovered that plants infected with a virus give off a gas that______disease resistance in neighboring plants.
选项
A、contracts
B、activates
C、maintains
D、prescribes
答案
B
解析
所填词需与disease resistance“抗病性”搭配,将[A]contract“感染”与[D]prescribe“开处方”先排除:[B]activates“激活、活化”与[C]maintains“保持”,发出的气体只能是“激活”抗病体而不是“保持”,所以答案为[B]。
转载请注明原文地址:https://kaotiyun.com/show/XyLK777K
0
专业英语四级
相关试题推荐
HealthMinisterNicolaRoxon’slatestproposalthatpatientsbeallocatedtodoctorsonalistbasisisstraightoutoftheplay
Nearlyhalftheworld’spopulationwillexperience【C1】______watershortagesby2025,【C2】______theUnitedNations.Wars【C3】_____
Thefactthatblindpeoplecan"see"thingsusingotherpartsoftheirbodies【C1】______theireyesmayhelpustounderstandou
TwoIranianguardshavebeenexpelledbecausethey_____.
Itisnotoftenrealizedthatwomen【C1】______ahighplaceinsouthernEuropeansocietiesinthe10thand11thcenturies.Asaw
Mrs.Nancywaswakenedmidnightbytheringingofthephoneseveralhoursaftertheshipthatherhusbandwasonhadbeen______
TheEnglish-Chinesedictionaryofmedical_________compiledbyProfessorSmithwaspublishedrecently.
Beforethe1500’s,thewesternplainsofNorthAmericaweredominatedbyfarmers.Onegroup,theMandans,【C1】______intheupper
WhenMr.Greenwasawayonbusiness,hisneighborgavehiswifea(n)______withthehousework.
HowdoIknowwhathe’sgoingtodo?Hisintentionsarealwaysasclearas______.
随机试题
行政合理性原则的内涵是()。
简述测验的编制和实施。
以下无上皮衬里的囊肿是
引起上消化道出血最常见的原因是()
为开拓市场需要,个人独资企业主曾水决定在某市设立一个分支机构,委托朋友霍火为分支机构负责人。关于霍火的权利和义务,下列哪一表述是正确的?
影响混凝土和易性的主要因素有()。
下列各项中,属于利润表提供的信息有()。
课外活动和课堂教学的共同之处在于它们都是在学校里进行的有目的、有组织、有计划的活动。()
Inasmuchasitispopular,organizedsportsactivitiesarediscouragedasindividualsmaylosefocusattheteambuildingaspe
A、Writetheirlabreport.B、FindoutProfessorSmith’sschedule.C、Interviewsomehighschoolstudents.D、Finishtheirchemistry
最新回复
(
0
)