The most versatile embryonic stem cells, which found in the embryo at the earliest stage of development and can gr

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问题 The most versatile ______ embryonic stem cells, which ______ found in the embryo at the earliest stage of development and can grow into any part of the body.

选项 A、are, are
B、is, is
C、are, is
D、is, are

答案A

解析

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考博英语

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The most versatile ______ embryonic stem cells, which ______ found in the embryo at the earliest stage of development and can gr

考博英语

Readthearticlebelowaboutmanagingacrosscultures.ChoosethebestwordorphrasetofilleachgapfromA,B,CorDon

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HowtoapproachSpeakingTestPartOne•Inthispartofthetestyouanswerquestionsaboutyourselfandexpresspersonalopinio

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Smallbusinessesjointogether!SmallbusinessesarebeinginvitedtojoinSmallbookBusinessAlliance(SBA).TheAlliance,

NOTJUSTASHOP!Inhisyearlyreport,theChairmanofachainofretailoutletswritesaboutthefinancialaspectsofthe

TourisminThailandIn1997therewereover7million(29)toThailand.Therewere(30)independenttravelers(up4.5%

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