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问题 单项选择题 A1型题

11个月小儿，发热2天，进食少，偶有吐奶。查体：T38.3℃，烦躁不安，呼吸深大，心率180次/分，四肢凉。应立即给予以下哪种处理（）

A.给予洋地黄强心治疗

B.CPAP辅助呼吸

C.抗生素静脉注射

D.开放静脉通路，快速补液

E.立即应用退热药物

答案

参考答案：D

解析：患儿发热2天，烦躁不安，呼吸深大，心率180次/分，四肢凉，有代谢性酸中毒及休克早期表现，此时应开放静脉通路，补液纠正早期休克。

解答题

已知函数f（x）=ex，直线l的方程为y=kx+b．

（1）求过函数图象上的任一点P（t，f（t））的切线方程；

（2）若直线l是曲线y=f（x）的切线，求证：f（x）≥kx+b对任意x∈R成立；

（3）若f（x）≥kx+b对任意x∈[0，+∞）成立，求实数k、b应满足的条件．
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单项选择题 共用题干题

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(6) .Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to(7)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 (8) of service attacks or steal (9) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (10) and worms acquired from unprotected public networks. Hackers masquer-ading as internal users can take advantage of weak internal security to gain access to confidential information.

空白处（7）应选择（）

A.venomous

B.malicious

C.felonious

D.villainous
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