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A.腺苷酸B.鸟苷酸C.胞苷酸D.尿苷酸E.胸苷酸111.tRNA搬运氨基酸时其与氨基酸相连接的核苷酸是112.真核生物mRNA帽子结构中被甲基化的核苷酸是

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A.DNA-polαB.DNA-polβC.DNA-polγD.DNA-polδE.DNA-polε113.在真核生物复制过程中起校读、修复和填补缺口的DNA聚合酶是114.存在于真核生物线粒体中的DNA聚合酶是

IBM is a company of ______ A.only IT businessB.only computer businessC.both IT and computer businessesD.both IT and consulting businesses

Care should be taken to decrease the length of time that one is ______ loud continuous noise.A.subjected toB.filled withC.associated with D.attached to

Mary always ______ things over with her parents before she makes an important decision.A.says B.talksC.tellsD.states

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