The growing pay gap reflects the " skill premium " commanded by relatively higher - educated , better - trained workers , and represents " a major problem of matching skills of workers to the technological base of the economy , which i believe is an education issue and requires that we address that as quickly and broadly as we can . 他称收入差距拉大，反映较高教育水平和较好培训工人所具有技能优势并占先，也说明工人技能符合经济的高科技基础的问题。他认为这是教育问题，是需要美国尽可能快和全面解决的问题。
The third part stressed on the design of gantry control print circuit , especially on how to use am85c30 to expand serial port and to realize the master - slave mode multi - point bus serial communication system with the principle gantry control circuit and other subordinate circuits using rs - 485 bus standard . we developed an idea of more tasks and non - occupancy in programming to make sure that the circuit can complete the communication between the gantry control circuit and other circuits within the permissible minimum time in the system 论文的第三部分重点说明了pet系统机电控制部分中主机箱控制板的设计，尤其突出介绍了用串行通信控制器am85c30实现扩展串口，用rs - 485总线传输标准实现的以该控制板为主机，机电控制部分其余子模块为从机的主从式多点总线型串行通信系统，在软件设计上引入了一种多任务非占先式编程的思想，使得该主控制板能够在系统允许的最小时间内完成与其余子模块之间的信息交换。
This dissertation wants to use traditional beliefs and ceremonies to illustrate that it is possible that sacrificial rites became the identity symbols when keeping language tends towards pessimism . this dissertation comprises seven chapters . chapter one explains the author ' s intention and purpose , the process and methods of date gathering and the dissertation ' s structure , and gives a review to the related theories of rites and research documents 基诺族是迄今中国最晚认定的单一民族，其民族文化当然有其独特之处，或许以其特殊的隔绝的地理环境与外族接触的空间不如赛夏族复杂，对于保存自有文化占先天的优势，现今有关语言的保存，使用与传习的环境，仍处于乐观的态势，但基诺族人口也仅二万人左右，不论与云南省或全国人口相比较都是居于绝对少数的地位。
A leading force in local business for over 85 years , bea has grown with hong kong . our experience , reach , and imagination give our customers the edge they need to stay ahead of the competition . from trade services to overdrafts and short - term loans , we provide a comprehensive range of corporate banking services to meet virtually every need 年，凭藉丰富经验、庞大的分行网络及不断创新的专业服务精神，一直致力为各行各业提供押汇、透支、短期贷款等多元化企业银行服务，助客户在竞争激烈的市场中，尽占先机。
The conclusions are : under the case of monopoly , the enterprise has the ability to delay the investment , thus it can take the advantages of option value brought by uncertainty to select the optimal timing of investment in each phrase flexibly ; under the case of competition , enterprise will select the optimal investment timing by comparing the tradeoff between the benefits of option value and the strategic lost of competitor ' s preemption , because preemption of competitor will reduce the ability of enterprise to delay investment comparing with the case of monopoly , the enterprise usually invests early , hi the meantime , by comparing the outcomes of investment cooperation in the r & d phrase with that of competition , we can conclude that r & d investment cooperation is pareto dominant strategy , since enterprise can fully take advantage of the option value brought by uncertainty , and thus enhance the flexibility of decision - making 得到的结论是：在垄断情形下，企业具有延迟投资的能力，因而企业可以充分利用不确定性带来的期权价值，在创新投资的各阶段根据不确定性信息的获得灵活地选择最优的投资时机；在竞争情形下，企业延迟投资的能力受到局限，由于害怕竞争对手的占先，企业为了获得占先效应，会考虑竞争对手的行为对自己的影响，通过在不确定性所带来的期权价值与竞争对手的行为所带来的战略价值之间进行权衡，来选武汉理工大学博士学位论文择最优的投资时机。与垄断情形相比，一般企业会提早投资。同时通过分析说明，竞争企业间通过在创新投资的研究与开发阶段进行合作，可以使两家企业充分利用不确定性带来的期权价值，增强决策的柔性，结论说明，合作创新投资是两家企业的帕累托占优策略。
( 3 ) study deeply the structure of fat 16 file system and the characteristic of flash disk , and develop the file management software of flash disk to manage nc files effectively according to the management idea of fat 16 file system . ( 4 ) research the module and protocol of reliable communication in serial network , which are composed of arm main control board , dsp motion control board , keyboard board , i / o control board and encoder signal collection board , and then develop communication software of the serial network . ( 5 ) study the principle of displaying char in lcd and the method of embedding font library into operating system , and research deeply the method of embedding chinese font library into os in the light of the characteristic of chinese 本论文的主要研究内容如下： ( 1 )研究uc os -实时嵌入式操作系统在硬件平台上的移植及其占先式内核的任务调度原理，合理分割铣床控制系统的管理任务，根据任务的要求赋予不同的优先级和调度时间，保证任务的执行效率和实时性； ( 2 )开发底层设备驱动程序和应用程序接口( api )函数，以便于进行系统应用软件的开发； ( 3 )深入研究fat16文件系统的结构和固态盘的硬件特性，参照fat16文件系统的管理思路，开发固态盘文件管理软件以有效管理nc代码文件； ( 4 )深入研究由arm主控板、键盘板、 i o控制板、编码器信号采集板等装置组成的串口通讯网络可靠通信的模型及其通讯协议，开发串口通讯网络通信软件； ( 5 )研究字符的显示原理和在操作系统中嵌入字库的方法，在此基础上结合汉字的特性深入研究中文字库的嵌入方法，开发中文字库嵌入软件，满足开发操作界面的信息要求； ( 6 )深入研究三维图形坐标变换的原理，开发实用的三维加工轨迹显示软件，便于操作者对零件的加工过程进行监控和诊断。
