A Digital Code Has Wide Applications B Floppy Disks Are Outdated C CDs Are Durable D CD’s Working Principle Is Explained E

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问题 A  Digital Code Has Wide Applications
B  Floppy Disks Are Outdated
C  CDs Are Durable
D  CD’s Working Principle Is Explained
E  CD-RWs Play Better Than CD-ROMs
F  CDs Are of Many Formats
*

选项

答案A

解析第三段第一句"Digital codes are used with many technologies."是主题句。本段其他句子提供例证，即应用领域。作者例举了5个领域：电邮、航天通讯、条码、手机和天气预报。选项A的"Digital code has wide applications"与主题句的意思完全吻合，所以是答案。

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A Digital Code Has Wide Applications B Floppy Disks Are Outdated C CDs Are Durable D CD’s Working Principle Is Explained E

职称英语理工类基础

职称英语

AchangesofNewspapersBservicebyNewspapersCsaleplaceofNewspapersDpopularityofNewspapersETrendofNewspapers

HospitalMistreatmentAccordingtoastudy,mostmedicalinternsreportexperiencingmistreatment,includinghumiliationbyseni

HospitalMistreatmentAccordingtoastudy,mostmedicalinternsreportexperiencingmistreatment,includinghumiliationbyseni

BetterControlofTBSeenIfaFasterCureIsFoundTheWorldHealthOrganizationestimatesthataboutone-thirdofallpeoplea

Anxietyaboutfinancialmatterlessenedsomewhatwhen,in1910,theUnitedStatesacceptedresponsibilityforLiberia’ssurvival

SincetheGreatDepression,theUnitedStatesgovernmenthasprotectedfarmersfromdamagingdropsingrainprices.

ParentsintheUnitedStatestendtoasktheirchildrenWhydoAmericanrestaurantsservelargeportions?

ThescientistandagriculturalinnovatorGeorgeWashingtonCarveraidedtheeconomyoftheSouthbydevelopinghundredsofcomme

QuiteafewNewYorkerstooktheirmayor’srecentadviceandgotaflushot.Someotherillnessesmayexhibitsymptomssimilar

Thatplayeriseternallyarguingwiththereferee.

OSI参考模型只是为制订标准而提供的概念性框架，其中只有________是可以实现的。

组织计划内容不包括()。

对于邮递物品而言，自用合理数量是指()。

行政处罚的公正原则是指()。

（2017年德州经开）在教学任务中处于基础地位的是()

我国社会主义初级阶段的个体经济是()。

假定所涉及的反常积分(广义积分)收敛，证明：∫－∞＋∞f(x－)dx=∫－∞＋∞f(x)dx．(*)

若以St为起点，以Fin为终点，工作的编号、代号和持续时间描述为如下格式：请根据上述元素的结点画出该项目的网络图。请根据上表，计算每个工作的最早开始时间和最迟开始时间，计算结果填入下表。

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