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问题 填空题

“月在云中穿梭，云从月旁擦过．”前句是以______参照物，后句是以______参照物．

答案

“月在云中穿梭”，说明月亮是运动的，它和参照物之间发生了位置的改变，则可以将云选择为参照物．

“云从月旁擦过”，说明云是运动的，它和参照物之间发生了位置的改变，则可以将月亮选择为参照物．

故答案为：云，月．

单项选择题

对肿瘤体积改变的评价，可采用RE-CIST标准和WHO标准，以下说法中正确的是（）。

A.RECIST标准采用双径测量，每个器官最多计5个病灶

B.WHO标准采用单径测量，未定义测量病灶的数目

C.按照RECIST标准，PR指靶病变缩小≥50%

D.按照WHO标准，PD指一个或多个病变增大≥25%

E.CR是指病灶完全消失，但两者对持续时间的定义不同
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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 (171) . Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to (172) 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 (173) of service attacks or steal (174) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (175) 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.

A．denial

B．virtuous

C．complete

D．traverse
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