The management of the staff performance attaches importance to enterprise as one of the key points of human resource management , and the performance appraisal , which serves is a core system at the center of management of the staff performance , is also drawing greater attention form the people , and has thus become a key point in the management of human resources at an enterprise 随着全球经济的快速发展,人力资源管理在企业管理中越来越受到重视,作为人力资源管理系统中的关键环节? ?绩效管理更是受到企业的重视,在这其中,处于核心地位的绩效考评,也越来越受到企业的关注,业已成为企业人力资源管理的重点。
The radical paradigm assumes that mcc challenge to eurocentrism and the rational paradigm to balance the curriculum . the radical paradigm is a so - called mcc under the cover of multiculturalism , actually not a mcc . mcc as the result of conflict and compromise is doomed to swing bet 激进范式认为，多元文化课程必须向欧洲中心主义、包容所有群体的文化和观点的“理性”课程提出挑战，打破以欧洲为中心的课程的不平衡，使黑人种族的成就在所有文明和学校课程中处于核心地位。
Dendritic cells ( dc ) is the most powerful apc , which can markedly increase the antigen - presentation capacity by maximizing the pepitide - mhc complexes on the cell surface and upregulating the co - stimulatory ligands b7 - 1 and b7 - 2 , adhesion moleculees such as il - 12 that promote full activation of lymphocytes . full activation of antigen - specific t cells requires two signals - one signal coming via the tcr and the other signal through engagment of co - stimulatary molecules . t cells receiving one signal via their tcr are turned off by mhc ( major histocompatibility complex ) , via t cell cd28 binding to b7 on the dc induce tlymphokine and t cell proliferatiion T细胞介导的细胞免疫在控制肿瘤生长方面发挥着重要作用， t细胞在发挥抗瘤效应(分泌细胞因子和直接杀伤)之前必须先经过活化，体内专职抗原提呈细胞( apc )细胞并使其活化，树突状细胞( dendriticcell , dc )为t细胞的激活提供双重信号， t细胞借助tcr识别由dcmhc分子递交的抗原肽后，通过tcr - cd3复合体传递抗原特异性识别信号(第一信号) ，以cd28为主的t细胞表面辅佐分子识别dc表面b7分子，传递非特异性协同刺激信号(第二信号) ，在机体抗肿瘤免疫应答中处于核心地位。
This paper discusses the key technologies of rpr and the criterions of ieee802 . 17 drafts , and then analyzes the fairness algorithms ( fa ) in bandwidth distribution with emphasis . and on the base of the rpr simulation model in opnet , the oscillation problems of bandwidth distribution are discussed with simulation experiments 本文简介弹性分组环的关键技术与协议规范，重点探讨处于核心地位的公平算法机制；根据目前协议草案( v2 . 2 )的规定，分析了在带宽分配过程中出现的振荡问题，并在opnet中构建仿真模型进行了相应的仿真分析。
Transaction processing technology is a key technology to ensure reliability and consistency of information . the transaction processing monitor is a kind of middleware that specially provides this technology . it offers a complete platform for developing , deploying , running , and managing three - tier based online transaction processing applications , and plays a crucial role in distributed applications 事务处理技术是保证信息可靠性和一致性的关键技术，事务监控器是提供这种技术的中间件产品，它是开发、部署、运行和监控基于三层结构的联机事务处理应用系统的基础平台，在构筑基于事务的网络分布应用中处于核心地位。
The reason is lain in : first , chinese - is retrained by the inform system - which heavy blood relationship , heavy human feeling - the reducing making the small and medium - sized enterprise can decease the expenses of financing obviously under the condition of scarce sound credit system ; second , the smalls and medium - sized enterprise of our country mostly adopt the labor - intensive mode of production in conformity with natural endowment characteristic of resource of our country , whose ability of surviving is strong 原因在于：一、中华民族特有非制度约束? ?一既重血缘、重人情? ?一使中小企业在融资活动中能明显的降低因信用体系不完善所带了的高额交易费用；二、我国中小企业大多采用与我国资源禀赋特征相适应的劳动密集型生产方式，生存能力强。但是，传统计划经济体制是在优先发展重工业的“赶超”战略下发展起来的，因此大企业在经济体系中处于核心地位。
The course educates at school the inside is placed in the core position , the educational target , value pass the course primarily to now with puts , into practice but the teaching material is a curricular importance to rely on with load , the course reformation can attain to expect the purpose , the key consists in teaching material can now with practical new education principle 课程在学校教育中处于核心地位，教育的目标、价值主要通过课程来体现和实施，而教材是课程的重要依托和负载，课程改革能否达到预期目的，关键在于教材能否体现和落实新的教育理念。
At the same time , the business enterprise which was placed in the core position encourages business partner to join , to use , to invest the electronic commerce strategy through designing valid encouraging mechanism , and together share ( b to b ) the expenses of the electronic commerce item with the risk 对我国的大型制造型企业发展电子商务而言，处于核心地位的企业通过设计有效的激励机制，鼓励业务伙伴参与、使用和投资电子商务战略，共同分担( btob )电子商务项目的费用和风险。
Transaction processing technology is a key technology to ensure reliability and consistency of information . the transaction processing monitor is a kind of middleware that specially provides this technology . it is the basic platform to explore , deploy , monitor , and manage three - tier online transaction processing applications , playing a crucial role in constructing transaction - based network distributed applications 事务处理技术是保证信息可靠性和一致性的关键技术，事务监控器是提供这种技术的一类中间件产品，它是开发、部署、监控和管理基于三层结构的联机事务处理应用系统的基础平台，在构筑基于事务的网络分步应用中处于核心地位。
