摒弃应试教学,开展素质教育──大学英语教学改革的关键举措

本文在分析大学英语教学改革多年难见成效的原因之后指出，统考不仅造成了应试教学的泛滥，还在一定程度上妨碍了教学观念的转变，阻碍了教学改革的进程。大学英语教学改革取得突破性进展的关键举措就在于摒弃统考并更新教学观念，调整教学内容，改进课程设置，最终变应试教学为素质教育。     

印制电路板自动测试系统的设计与应用研究

采用ＣＭＯＳ开关阵列对印制电路板测试系统的组成、测试原理与软件编程技术进行了自动测试的设计与应用研究。结果表明，该系统可有效提高印制电路板的测试水平。在保障产品质量的同时，大幅度提高了生产效率，实现了预期的系统性能与技术指标的要求。     

英语试卷的编排

要让学生考出真实水平 ,有很多因素可以促成这一目标的达到 ,其中一个因素为试卷的编排。试卷的编排涉及到试卷的总体编排和试卷题目各部分的编排。编排顺序或方式不当皆可导致分数的无效差异 ,所以应引起注意。     

福龙丸事件始末

1954年3月1日，日本渔船福龙丸在太平洋捕鱼时，遭到了美国在比基尼环礁试爆的氢弹的放射性污染，这一事件对美日关系产生了重大影响，美国国家安全委员会为此调整了对日政策，于1955年4月9日制订了NSC5516/1号文件，改变了要求日本短期内重整军备的方针，而代之以渐整军备。     

物理考核的一种量化方式

本文依据物理试题涉及的知识面和解题曲折程度，定认了物理试题难度的新概念，并从这种难度定义确定物理度卷的考核量，提出物理考核量化运作的一种新的方式。     

试析实践标准的过程结构

实践标准有现实实践标准和虚拟实践标准,它们分别是人们关于现实世界和虚拟世界认识的真理性的唯一标准。它们都由若干过程要素组成,大致分逻辑检验、操作物化和结果评验三大环节,这三大环节地位不同,功能各异,共同起到真理标准的作用。这是一个动静统一的综合作用、整体功能的标准,任何一个环节都不能单独起到真理标准的作用。     

ON BOOTSTRAP HYPOTHESIS TESTING

We describe methods for constructing bootstrap hypothesis tests, illustrating our approach using analysis of variance. The importance of pivotalness is discussed. Pivotal statistics usually result in improved accuracy of level. We note that hypothesis tests and confidence intervals call for different methods of resampling, so as to ensure that accurate critical point estimates are obtained in the former case even when data fail to comply with the null hypothesis. Our main points are illustrated by a simulation study and application to three real data sets.     

A BETA-OPTIMAL TEST OF THE EQUICORRELATION COEFFICIENT

This paper considers the problem of testing for nonzero values of the equicorrelation coefficient of a standard symmetric multivariate normal distribution. Recently, SenGupta (1987) proposed a locally best test. We construct a beta-optimal test and present selected one and five percent critical values. An empirical power comparison of SenGupta's test with two versions of the beta-optimal test and the power envelope shows the relative strengths of the three tests. It also allows us to assess and confirm Efron's (1975) rule of when to question the use of a locally best test, at least for this testing problem. On the basis of these results, we argue that the two beta-optimal tests can be considered as approximately uniformly most powerful tests, at least at the five percent significance level.     

Exact testing in multivariate regression

An F statistic due to Rao (1951,1973) tests uniform mixed linear restrictions in the multivariateregression model. In combination with a generalization of the Bera-Evans-Savin exact functional relationship between the W, LR, and LM statistics, Rao's F serves to unify a number of exact test procedures commonly applied in disparate empirical literatures. Examples in demand analysis and asset pricing are provided. The availability of exact tests of restrictions in certain nonlinear models when the model is linear under the null, originally explored by Milliken-Graybill (1970), is extended to multivariate regression. Generalized RESET, J-, and Hausman-Wu tests are resented. As an extension of Dufour (1989), bounds tests exist for nonlinear and inequality restrictions. Applications include conservative bound tests for symmetry or negativity of the substitution matrix in demand systems.     

江苏省经济发展与城乡统筹关系实证分析：1980～2004

Granger因果关系检验表明,短期内江苏经济发展与城乡统筹存在着单向因果关系,长期内江苏的经济发展与城乡统筹之间存在着双向的、互为因果关系。进一步脉冲分析表明,一方面,经济发展并不会自动导致城乡差距的缩小,而且在长期还会进一步加大城乡差距;另一方面,在短期内城乡统筹水平对经济发展的影响并不显著,在长期内城乡统筹水平对经济发展的影响为负效应。