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Sentences arrangement.1.Wewouldkeepyouinformedwhenthereisnews.2.WeregrettoinformyouthatthePOX20086willbedelayedtwoweeks.3.Weapologizeforthisdelayeddelivery.4.Thereasonisthattherawmaterialhavebeenoutofstock.

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Blank filling.evidentcheckrejectperfecttrustinconveniencedefectivetroubleregretreplaceDearMr.Booth,YourletterofJune5surprisedusconsiderablyasourwarehousemengotexplicitinstructionstosupplyourcustomerswith(1)goodsonly,andreturnthosethatare(2)tothemanufacturer.Itis(3),however,thattheyhadsentyouthegoodswithoutacareful(4),otherwisewewouldhavereceivednocommunicationfromyouonthesubject.We(5)thatyouhavebeenputtothe(6)ofrepackingandreturningthe(7),andwithoutwaitingforthepackage,wehavesenttoyoufiftypiecesofperfectgoodsto(8)theothers.We(9)thatyouhavenotbeenseriously(10)throughthemanifestremissnessofouremployees.Yourstruly,TimJosephConsumerAffairCoordinator

可致慢性肝炎或肝硬化的病毒为( )

A. HAV , HBV 和HCV
B. HBV , HCV 和HDV
C. HCV , HDV 和HEV
D. HDV , HEV 和HAV
E. HEV,HCV 和HBV

不符合血清HBsAg(+ ) , HBeAg(+)和抗HBc(+)的解释是( )

A. 急性乙型肝炎;
B. 慢性乙型肝炎;
C. 乙型肝炎恢复期;
D. 重症肝炎;
E. 血清有强传染性。

关于HAV ,错误的是( )

A. 是单股正链RNA 病毒;
B. 能在体外细胞中培养;
C. 特异性预防可接种疫苗;
D. 抵抗力弱,对脂溶剂敏感;
E. 隐性感染多件