Scientists have discovered a close______between smoking and several serious diseases.

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问题 Scientists have discovered a close______between smoking and several serious diseases.

选项 A、action
B、connection
C、union
D、combination

答案B

解析 B项意为“联系”，符合上下文的意思。

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考博英语

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Scientists have discovered a close______between smoking and several serious diseases.

考博英语

Traditionally,thestudyofhistoryhashadfixedboundariesandfocalpoints—periods,countries,dramaticevents,andgreatl

Lastyear,whenPresidentGeorgeW.Bushannouncedthatfederalfundscouldbeusedtosupportresearchonhumanembryonicstem

Specializationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupth

Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworld

OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcreditin

TheInternetcanmakethenewsmoredemocratic,givingthepublicachancetoaskquestionsandseekoutfactsbehindstoriesan

Thereareincreasinglyfraughtrelationshipsthatadultsarehavingwithchildren—inallwalksoflife,fromthepoliceandpoli

Nobodyyetknowshowlongandhowseriouslytheshakinessinthefinancialsystemwill______downtheeconomy.

Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworld

Atthemomentsheis______thenetballmatchbetweentheJapaneseteamandtheCubanteamoverattheplayingfield.

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