题目内容：
Questionsarebasedonthefollowingpassage.
NewStanfordresearchrevealsthatfarmersinEuropewillseecropyieldsaffectedasglobaltemperaturesrise,butthatadaptationcanhelpslowthedeclineforsomecrops.
Forcorn,theanticipatedlossisroughly10percent,theresearchshows.
Farmersofthesecropshavealreadyseenyieldgrowthslowdownsince1980astemperatureshaverisen,thoughotherpolicyandeconomicfactorshavealsoplayedarole.
"TheresultsclearlyshowedthatmodestamountsofclimatechangecanhaveabigimpactonyieldsofseveralcropsinEurope,"saidStanforddoctoralstudentFrancesMoore,whoconductedtheresearchwithDavidLobell,anassociateprofessorofenvironmentalEarthsystemscience.
MooredescribedtheresultsassomewhatsurprisingbecauseEuropeisfairlycool."Soyoumightthinkitwouldbenefitfrommoderateamountsofwarming,"shesaid."OurnextstepwastoactuallymeasurethepotentialofEuropeanfarmerstoadapttotheseimpacts."
"Byadaptation,wemeanarangeofoptionsbasedonexistingtechnologies,suchasswitchingvarietiesofacrop,installingirrigationorgrowingadifferentcrop,onebettersuitedtowannertemperatures,"saidLobell."Thesethingshavebeentalkedaboutforalongtime,butthenovelty(新奇)ofthisstudywasusingpastdatatoquantify(量化)theactualpotentialofadaptationtoreduceclimatechangeimpacts.Wefindthatinsomecasesadaptationcouldsubstantiallyreduceimpacts,butinothercasesthepotentialmaybeverylimitedwithcurrenttechnologies."
MoorepointedoutthatthebiggestissuesareoftenhowquicklyfarmersinEuropewilladapttoclimatechange(adaptationuncertainty)andhowcropyieldswillrespondtoclimatechange(responseuncertainty).
"ThispaperhasshownthatcropsinEuropearesensitivetowanningandthatadaptationcanbeimportantinreducingthatimpact,"Mooresaid."Thenextquestionishowquicklyfarmerswillusetheavailableoptionsforadapting.
Europehasalreadyseenalotofwarming,soweshouldexpecttoalreadyseeadaptationiffarmersarequicktorespondtoclimatesignals,"
WhatdoesthenewStanfordresearchshow? A．Peoplecandonothingaboutglobalwanning.
B．Theinfluenceofglobaltemperatureriseisincreasing.
C．Peoplecandosomethingtoslowthedeclineforsomecrops.
D．Allcrops'yieldswilldeclineasglobaltemperaturesrise.
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