Like several other important advances in medicine, penicillin was a somewhat (i)

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问题 Like several other important advances in medicine, penicillin was a somewhat (i) ______ discovery resulting from (ii)______combination of blind chance and technical expertise.

选项

答案 C，D

解析 resulting from说明前后同义重复。两空联动，同义重复。progressive进步的，untimely时间不恰当的，accidental意外的；favorable有利的，unlucky不幸的，reliable可靠的。答案选CD。

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Like several other important advances in medicine, penicillin was a somewhat (i)

Likeseveralotherimportantadvancesinmedicine,penicillinwasasomewhat(i)

Theambassadorarguesthat,indiplomacy,thereisasubtlebutimportantdiffer

Themedicinedoeshaveasalutaryeffectby______pain,evenifrecentstudiespr

Afterseveralmonthsoftraining,the(i)______youngspanielwasfinally(ii)___

Recentadvancesindicatethatcuresforsomeseeminglyintractablediseasesare

BlackAmericansinFlight,amuralhonoringseveralaviationpioneers,also_____

Manyimportantinventionsaretheresultof(i)______;forexample,Chinesealch

Theaspiringwriter,whoremained(i)______evenafterbeingrejectedbyseveral

Noisesuppressioninphonescanplayanimportantroleinmakingcellphonenetwo

Theeconomicrecoverywassomewhatlopsided:(i)______insomeoftheindustrial

[img]ct_epem_epelisv_00991(20097)[/img][br][originaltext]She’sfromMexico.[/

CommunicatingThroughInternetThehistoryoftheIn

Educatorsareseriouslyconcernedaboutthehighrateofdropoutsamongthe

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行为税类是国家调节（）所开征的税。A.公民的所有行为 B.一切经济领域类的经

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建设工程采用设计—施工总承包方式的不足是()A、工程质量控制难度大 B、工程进

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Afterseveralmonthsoftraining,the(i)____youngspanielwasfinally(ii)_