英译中（Translate)：cohesiontheory（)
facultative heterochromatin （兼性异染色质)
熔剂粒度大，在烧结过程中易出现白点。（)
YouhaveasingleActiveDirectorydirectoryservicedomain.Youbackupyourdomaincontrollersonanightlybasis.YouperformGroupPolicybackupsonanightlybasis.AGroupPolicyobject（GPO）isaccidentallydeleted.YouneedtorestoretheGPO.Whatshouldyoudo？（）
下列关于语汇性质特点的表述,不正确的一项是（)
