A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models

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问题 A．a necessity
B．an emergency
C．a number of new headaches
D．family arguments
E．big and light palm-sized models
F．countless new facilities
Cell phones are common in our lives and have become______．

选项

答案A

解析文章第二段介绍了手机在日常生活中的普遍性和发挥的重要作用，指出手机已经成了一个必需的工具。故选A。

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本试题收录于：职称英语理工类C级题库职称英语分类

职称英语理工类C级

职称英语

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A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models

职称英语理工类C级

职称英语

AcandidatesforclinicaltrialsBduringthetrialCmedicalknowledgeDinhumansEbeforeparticipationFforsomepatients

ManyAmericanwomenhaveapoorknowledgeofcancer.SomeAmericanwomenaretooafraidoffindingcancertoundergoscreening.

FDAhasapprovedtheplanofusingHIVtocurecancerinhumans.HIVcanbesafelyusedtocurecanceronlyifthedeadlygenes

Butintheendheapprovedofourproposal.

Wehadalong(conversation)aboutherparents.

Throughouttheworldthereisashortageofhumanorgansfortransplants.InBritain,forexample,6000peoplearewaitingforo

Supped-up(效力增强了的)enzymesthatflushpoisonsoutofcellsmoreefficientlythantheirnaturalcounterparts(对应的人或物)couldallevia

StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainof

ArtificialSpeechBecausespeechisthemostconvenientformofcommunication,inthefuturewewantessentiallynaturalcon

ForestsforCitiesYouarestandinginabeautifulforestinJapan.Theairiscleanandsmellslikeplantsandflowers.Ther

一产后4天的产褥妇女，有下列主诉，哪项不是正常产褥现象

“蛋白尿”是指24h尿液中蛋白质含量超过

在题83图示电路中，开关S在t=0瞬间闭合，若uC(0-)=0V，则uL(0+)=()V。

()菜的口味特点是汤菜要清，味道要淡。

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