I was impressed by the range of______ accessories of my microcomputer that were available.

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问题 I was impressed by the range of______ accessories of my microcomputer that were available.

选项 A、acceptable
B、compulsory
C、optional
D、random

答案C

解析形容词词义辨析题。空白前面有range“范围”，那么“附件”应该是在范围内“选用的”，optional“可选择的”符合题意，故C正确。acceptable“可接受的”；compulsory“必须做的，必修的，被强迫的”；random“任意的，随意的”。

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专业英语四级

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I was impressed by the range of______ accessories of my microcomputer that were available.

专业英语四级

Instudyafterstudy,fourtraitsare【C1】______ofhappypeople.First,happypeople,especiallyin【C2】______Westerncultures,li

WhenIwasachildinBrainItaly,hardlyanymothershadajob,grandmotherslivedwiththeirchildrenandgrandchildren,and

Mostpeoplefeelstressatsometimeintheirlives.Somepeoplelikethispressureandworkbetterbecauseofit.Otherpeople

Thewinnersofthefootballchampionshipranoffthefieldcarryingthesilvercup______.

TheUnitedStatescourtsystem,aspartofthefederalsystemofgovernment,ischaracterizedbydualhierarchies:therearebot

Howdidthemanspendhisvacation?

Itisuselesstryingtopersuadehimtoadoptoursuggestion;heissucha______man.

Youknowyouhavetoread"betweenthelines"togetthemostoutofanything.Iwanttopersuadeyoutodosomethingequallyim

Pleasemakesuretheregulationsabouthowto______theCustomsbeforeyouchoosethechannel.

TowaterflowersonarainydayissimplycarryingcoalstoNewcastle.Theunderlinedpartmeans______.

反映城市土地开发强度的指标通常有()。

能够引起资产与负债或所有者权益项目同时等额增加的经济业务有()。

职工一方当事人人数为()人以上，有共同争议理由的劳动争议称为集体争议。

关于EDI的描述中，错误的是()。

研究表明，在噪音背景下，被试识别句子(5个单词组成的语句)中的单词比识别个别单词容易。该研究说明影响言语感知的因素是

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