首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   23566篇
  免费   1006篇
  国内免费   16篇
  2020年   284篇
  2019年   281篇
  2018年   473篇
  2017年   422篇
  2016年   466篇
  2015年   294篇
  2014年   421篇
  2013年   1801篇
  2012年   730篇
  2011年   773篇
  2010年   442篇
  2009年   506篇
  2008年   679篇
  2007年   675篇
  2006年   628篇
  2005年   551篇
  2004年   523篇
  2003年   515篇
  2002年   469篇
  2001年   825篇
  2000年   821篇
  1999年   615篇
  1998年   253篇
  1997年   228篇
  1996年   219篇
  1995年   206篇
  1992年   503篇
  1991年   440篇
  1990年   499篇
  1989年   415篇
  1988年   406篇
  1987年   378篇
  1986年   401篇
  1985年   448篇
  1984年   358篇
  1983年   289篇
  1982年   227篇
  1979年   328篇
  1978年   262篇
  1977年   208篇
  1975年   303篇
  1974年   350篇
  1973年   358篇
  1972年   285篇
  1971年   248篇
  1970年   211篇
  1969年   235篇
  1968年   297篇
  1967年   256篇
  1966年   275篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
122.
The youngest subject (age 5) participating in the 1986 evaluation studies published in this Journal returned 25 mo. after finishing REHABIT training. This boy's test scores showed a significant decline in verbal ability. It was concluded that follow-up studies of REHABIT clients are necessary and that such clients should be cautioned that regression may occur.  相似文献   
123.
The Rosenberg Self-esteem Scale was administered to 550 14- and 16-yr.-old (+/- 6 mo.) girls. Self-esteem scores were categorized by weight and weight by height. Scores on the Quetelet Index for obesity were correlated with self-esteem scores. Mean self-esteem of the low- and middle-weight by height group was significantly higher than the mean of the high-weight by height group. In analyzing weight alone, the self-esteem of the middle-weight group was significantly higher than the self-esteem of the high-weight group. The correlation of the obesity index and self-esteem indicated that as weight increased self-esteem decreased.  相似文献   
124.
125.
"Abnormal fusion" of stereopsis and binocular rivalry   总被引:1,自引:0,他引:1  
  相似文献   
126.
127.
Practice in front of a mirror is a common procedure for activities such as dance, gymnastics, and other sports. The purpose of this study was to examine the effect that performing with concurrent visual feedback from a mirror had on the acquisition of the power clean movement. 18 college-age males who had no prior experience with the power clean movement served as subjects who were assigned to one of two groups. One group had use of a mirror during the practice trials and the other practiced without the mirror. All subjects viewed an instructional videotape and had practice trials. All subjects were evaluated for proper technique on a pretest, a posttest without the mirror, and a posttest with the mirror. Analysis showed a significant difference between pre- and posttest performances for both groups and a significant difference between groups on the posttest performances with the mirror. Evidently the videotaped instruction was sufficient to allow both groups to improve in performance of the power clean. Differences in posttest performances with the mirror reflected the type of feedback (with or without the mirror) available during training.  相似文献   
128.
129.
130.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号