哪些不是重症病毒性心肌炎 （） A.阿斯综合征发作 B.严重充血性心力衰竭 C.心

关于城乡规划，下列叙述正确的是（）

A.是一定时期内城市和村镇建设、发展和管理的依据

B.包括城市规划和村镇规划

C.是城市或村镇在一定时期内的发展计划

D.是城市各项建设的综合部署和具体安排

E.以上都是

总账不论采用何种形式，都必须采用订本式账簿，以保证总账记录的安全和完整。

(71) is used to ensure the confidentiality, integrity and authenticity of the two end points in the private network. (72) , 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 alsohandles the exchange of session keys used for that one transaction.
Networks that use (73) to secure data traffic can automatically authenticate devices by using (74) , which verify the identities of the two users who are sending information back and forth. IPSeccan be ideal way to secure data in large networks that require secure connections among many devices.
Users deploying IPSec can (75) their network infrastructure without affecting the applications on individual computer. The protocol suite is available as a software-only upgrade to the networkinfrastructure. This alows security to be implemented without costly changes to each computer. Mostimportant, IPSec allows interoperability among different network devices, PCs and other computingsystems.

A．characteristics
B．associated links
C．digital certificates
D．attributes

该商品流通企业定期评价供应商的绩效，评审供应商的指标包括( )。

A．时期指标

B．供应指标

C．经济指标

D．支持、配合与服务指标

下列表示球体符号正确的有（）。

A.球直径用"SΩ"表示

B.球直径用"球R"表示

C.球半径用"Sφ"表示

D.球直径用"Sφ"表示