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问题 单项选择题

患者男性，78岁。反复咳嗽、喘息20年，5年前诊断为COPD，2天前合并肺部感染入院。目前患者的医疗诊断是肺源性心脏病，患者首先应选用的药物是

A．洋地黄
B．抗生素
C．利尿剂
D．糖皮质激素
E．抗心律失常药

答案

参考答案：B

单项选择题

在Word 97的编辑状态，为文档设置页码，应使用( )。

A．“工具”菜单中的命令

B．“编辑”菜单中的命令

C．“格式”菜单中的命令

D．“插入”菜单中的命令
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单项选择题

To compete in today’s fast-paced competitive environment, organizations are increasingly allowing contractors, partners, visitors and guests to access their internal enterprise networks. These users may connect to the network through wired ports in conference rooms or offices, or via wireless access points. In allowing this open access for third parties, LANs become （1）. Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to（2）activity. For many organizations, however, the operational complexity and costs to ensure safe third party network access have been prohibitive. Fifty-two percent of surveyed CISOs state that they currently use a moat and castle’s security approach, and admit that defenses inside the perimeter are weak. Threats from internal users are also increasingly a cause for security concerns. Employees with malicious intent can launch（4）of service attacks or steal （5） information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with （6）and worms acquired from unprotected public networks. Hackers masquerading as internal users can take advantage of weak internal security to gain access to confidential information.

5（）

A．sickness

B．disease

C．germs

D．viruses
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