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问题 多项选择题

据《灵枢•营卫生会》篇所述，营卫二气运行的规律是（）

A.营在脉中，卫在脉外，营周不休，五十而复大会

B.太阴主内，太阳主外，各行二十五度，分为昼夜

C.卫气行于阳二十五度，行于阴二十五度，分为昼夜，故气至阳而起，至阴而止

D.营卫者，精气也

E.血者，神气也

答案

参考答案：A, B, C

单项选择题

___57___ is used to ensure the confidentiality, integrity and authenticity of the two end points in the private network. ___58___, an application-layer protocol, authenticates each peer in an IPSec transaction. IKE negotiates security policy, determining which algorithm may be used to set up the tunnel. It also handles the exchange of session keys used for that one transaction.

Networks that use ___59___ to secure data traffic can automatically authenticate devices by using by using ___60___, which verify the identities of the two users who are sending information back and forth. IPSec can be ideal way to secure data in large networks that require secure connections among many devices.

Users deploying IPSec can ___61___ their network infrastructure without affecting the applications on individual computer. The protocol suite is available as a software-only upgrade to the network infrastructure. This alows security to be implemented without costly changes to each computer. Most important, IPSec allows interoperability among different network devices, PCs and other computing systems.

60（）

A. characteristics

B. associated links

C. digital certificates

D. attributes
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单项选择题

40岁以上发病的皮肌炎患者须高度警惕（）

A.恶性肿瘤

B.系统性红斑狼疮

C.类风湿性关节炎

D.心脏病

E.糖尿病
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