给水泵组前置泵的作用是提高给水泵出力，满足锅炉高负荷的需求。（）

材料一：2008年9月19日，举行全党深入学习实践科学发展观活动动员大会暨省部级主要领导干部专题研讨班开班式。胡 * * 发表重要讲话：实现新发展，要求我们必须深化用中国特色社会主义理论体系武装全党工作，为实现全面建设小康社会的宏伟目标，进一步奠定重要的思想基础、政治基础、组织基础。

材料二：为建设生态文明，基本形成节约能源资源和保护生态环境的产业结构、增长方式、消费模式，泉州市人大常委会通过《泉州市城市总体规划（修编）》，泉州将打造海湾型生态城市。

（1）阅读材料一，结合教材知识谈谈对科学发展观的理解。

________________________________________________________________________________________________________________________________________________________________________________________

（2）面对材料二，谈谈打造海湾型生态城市应坚持哪些战略和基本国策？

________________________________________________________________________________________________________________________________________________________________________________________

（3）为把泉州建设成为海湾型生态城市，你能做些什么？

___________________________________________________________________________________________

___________________________________________________________________________________________

___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.

59（）

A. authenticity

B. IPSec

C. confidentiality

D. integrity

为什么说农民问题是中国革命的基本问题？

“幼儿园之父”福禄倍尔对学前教育的最大贡献是（）

A.取了幼儿园这个名字

B.创制了名为“恩物”的一套玩具

C.通过集体活动组织艺术类教学

D.开展社会化游戏

属于常用普通焊条的型号是（）。

A.T422

B.T506

C.T507