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 ___72___. Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to ___73___ 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 ___74___ of service attacks or steal ___75___ information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with ___76___ 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.

73（）

A.malicious 

B.venomous 

C.felonious 

D.villainous

女性，40岁，饱餐后出现上腹持续性疼痛并向左肩、腰背部放射，伴有恶心、呕吐，诊断为急性胰腺炎。入院后收集的资料中与其疾病关系密切的是

A．母亲患高血压

B．平时喜食素食

C．患胆总管结石5年

D．休息时喜欢看电视

E．吸烟3支/日