网球双手反拍抽击球技术中“主发力手”辨析

今天双手反拍抽球技术已成为最重要、最基本的技术之一。双手反拍抽击球与底线正拍击球一样,能打出高质量、高难度的进攻球。但是怎样运用,如何提高击球的效果？传统的观念认为,双手反拍技术右手是主打。在击球过程中要身体放松,身体协调,在此情况下,完全可以左右手很自然的协调配合起来,发挥最大的效用。     

进步民族史观与高超叙事艺术的整合——评《史记·西南夷列传》

《史记·西南夷列传》描绘了西南地区内部各民族的独特特点,追溯了西南各族人民与内地交往的历史,重点讲述了汉武帝三次通西南夷的情况,表现了司马迁进步的民族史观;将复杂繁乱的历史问题叙述得条理分明,体现了司马迁高超的叙事艺术。     

构建高校共青团工作体系 服务青年学生成长成才

随着高校教育改革的不断深入,服务青年学生成长成才已成为高校共青团工作最有效的切入点。高校共青团工作应该主动适应形势的发展和青年学生成长成才的实际,构建思想政治教育、课外科技创新、学生社会实践和校园文化活动四大工作体系,才能更好地为青年学生成长成才服务。     

Ethnic differences in the academic achievement process in Canada

This research examines the extent to which differences in achievement between German-speaking and French-speaking students are accounted for by theoretically related intervening variables and the extent to which the entire achievement process differs across the two ethnic groups. For the two ethnic groups, both main effects and interaction effects have significant consequences for the academic achievement process, even when a number of other variables are controlled. The results suggest that the whole process works to the benefit of the German-speaking students and to the detriment of the French-speaking students.     

Confession of prior knowledge about experimental procedures as a function of evaluation apprehension and commitment

Subjects' evaluation apprehension (anxiety about being judged by the experimenter) and commitment to (involvement in) the experiment were manipulated in an experimental study of subjects' honesty in postexperimental interviews. Previous studies have shown that subjects are typically dishonest in postexperimental interviews by refusing to admit prior knowledge of the experiment imparted to them by a confederate. It was found that both high apprehension and low commitment lead to greater subject honesty. Other features of the experimental design were successful in inducing subjects to be generally more honest than their counterparts in previous confederate tip-off studies.     

改革开放以来汉语借词的社会语言学透视

改革开放以来汉语词汇平面发生了显著变化,其重要标志之一就是大量借用外来词语,主要涉及日常生活、教科文、经济和管理领域。这些汉语借词不仅是改革开放的产物,同时也从一个侧面反映了这一重大变革的丰硕成果     

根据46种唐诗选本统计出的唐代著名诗人

以选本统计的方法,选出唐代主要诗人448名。并列出其中著名诗人名单及主要统计结果,以供学界相关人员参考。     

保持国民经济持续快速健康发展的重要途径

保持国民经济持续快速健康发展,是我国经济今后一个时期必须解决好的两大课题之一。本文从推进经济体制的根本转换,转变经济增长方式,大力发展科学技术,努力提高对外开放水平等方面阐述了笔者对这一课题的认识和看法     

论孟子仁学的内涵和实质

本文以“爱人”为核心,从亲亲、爱人、爱物三个方面,比较全面地分析和探讨了孟子仁学思想的基本内涵,认为为仁需经过亲亲而爱人,由爱人而爱物的步骤来完成,揭示了一个比较完整的仁学系统,从而把儒家学说核心范畴和最高道德理想的仁,以一种平实简易的样态呈现于世人,人们只要扩充“仁之端”,拓展“亲亲”之情,“盈科而后进”,则可以成为仁人。     

m=0、e≠0条件下C度规的源

用文献[2]所给方法讨论了m=0、e≠0条件下C度规场源。用虚坐标方法对视界内部进行了讨论,得到了虚r坐标的变化范围;并对视界内部的Ernst势进行了有益的讨论。