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甲状腺制剂主要用于（）
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卧立位试验提示迷走神经兴奋性增强的是（）
You work as a network Exchange administrator at Company.com.The Company.com network currently consists of a single Active Directory forest containing a single domain\ named Company.com.The functional level of the forest and domain are set at Windows Server 2003.The Company.com organization makes use of Microsoft Exchange Server 2003 Service Pack 2 （SP2） as their messaging solution.During the course of the business week you receive instruction from Company.com to start transitioning Exchange Server 2003 to Exchange Server 2010 whilst preparing the Active Directory environment for the deployment of Microsoft Exchange Server 2010.What should you do？（）
患者男，40岁，2小时前用带钩的橡皮带把煤气瓶捆绑于摩托车后座时橡皮带突然松脱，弹中右眼。右眼流出多量血液、眼部剧痛、视物不见，即到眼科急诊。眼部检查：VodLP／20cm，光定位准确，Vos1．5。右眼下睑内侧处皮肤裂伤、斜形创口长约15mm，结膜水肿（++）、混合充血（++++）、颞侧结膜下大片出血，角膜中央部分上皮缺损、荧光素染色（+）、基质层水肿、后弹力层皱折（++），前房轴深约3CT、房水呈血性、下方血性液平4mm，瞳孔呈"D"形、大小约6mm×5mm、直接和间接对光反射消失，晶状体轻度震颤、其可见部分尚透明，眼底检查隐见视盘，未能看清黄斑和视网膜细节。左眼眼部检查未见异常。若进行巩膜探查术，应遵从的原则是（）
Astute service providers realize that the continued support of legacy X.25 and asynchronous network element using separate operations network is cost(16).For example,the maintenance of multiple networks can require additional staff. Often, this staff must be trained on multiple vendor technologies, sometimes requiring parallel groups specializing in each (17) .Hence, additional maintenance procedures must be maintained and administrative records are (18) .The duplication of transport facilities to carry (19)network traffic is an inefficient use of resources. And not surprisingly, more technologies installed in a central office means the necessity for more physical space, and an increase in power connections and power consumption migration of these (20) network elements to IP-based DCns is alogical strategy.空白处（17）应选择（）
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