患者,女,32岁,风心病二尖瓣狭窄及关闭不全12年,近3年来每年冬季好发心衰,平日坚持服用地高辛及利尿剂。近1周出现咳嗽,咳黄痰,发热,2天来心跳加速、气短加重入院。体检:T38℃,BP100/70mmHg,R28次/分,神清,半卧位,口唇、面颊、甲床发绀,可见颈静脉怒张,心界扩大,心率120次/分,律整,两肺满布干、湿啰音,肝肋下2指,脾(-),无腹水,双下肢可凹性水肿。责任护士考虑患者此次心衰发生的主要诱因是()
A. 心身过劳
B. 肺部感染
C. 地高辛用量不当
D. 心律失常
E. 利尿剂用量不当
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Your network consists of a single Active Directory domain. All domain controllers run Windows Server 2008 R2. The network contains 100 servers and 5,000 client computers. The client computers run either Windows XP Service Pack 1 or Windows 7. You need to plan a VPN solution that meets the following requirements: èStores VPN passwords as encrypted text èSupports Suite B cryptographic algorithms èSupports automatic enrollment of certificates èSupports client computers that are configured as members of a workgroup What should you include in your plan?()
A. Upgrade the client computers to Windows XP Service Pack 3. Implement a stand-alone certification authority (CA). Implement an IPsec VPN that uses certificate-based authentication.
B. Upgrade the client computers to Windows XP Service Pack 3. Implement an enterprise certification authority (CA) that is based on Windows Server?2008 R2. Implement an IPsec VPN that uses Kerberos authentication.
C. Upgrade the client computers to Windows 7. Implement an enterprise certification authority (CA) that is based on Windows Server 2008 R2. Implement an IPsec VPN that uses pre-shared keys.
D. Upgrade the client computers to Windows 7. Implement an enterprise certification authority (CA) that is based on Windows Server 2008 R2. Implement an IPsec VPN that uses certificate-based authentication.