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问题 单项选择题

男，20岁，间歇性畏寒、寒战、发热半年，约每月发作一次，每次持续7—10天，近一日出现面部水肿，尿量减少，血压升高，尿蛋白++，尿红细胞3—6／HP，血涂片发现间日疟原虫，应诊断为

A．疟疾

B．肾病综合征

C．疟疾并发急性肾小球肾炎

D．疟疾并发肾病综合征

E．疟疾急性肾盂肾炎

答案

参考答案：C

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 network. 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 has been prohibitive. Fifty-two percent of surveyed CISOs stated that they currently use a moat and castle" 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 (3) of service attacks or steal (4) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (5) 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．viruses

D．germina
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选择题

如图所示，拉力F=125Ｎ，在10s内将重物匀速提升2m，滑轮组的机械效率是80%。则下列说法正确的是

[ ]

A.绳子自由端移动距离为6m

B.物体重是375Ｎ

C. 拉力F做的功是250Ｊ

D. 拉力F的功率为25W

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