全文获取类型
收费全文 | 5663篇 |
免费 | 53篇 |
国内免费 | 134篇 |
专业分类
教育 | 3082篇 |
科学研究 | 1303篇 |
各国文化 | 33篇 |
体育 | 854篇 |
综合类 | 97篇 |
文化理论 | 24篇 |
信息传播 | 457篇 |
出版年
2024年 | 31篇 |
2023年 | 57篇 |
2022年 | 45篇 |
2020年 | 28篇 |
2018年 | 28篇 |
2017年 | 40篇 |
2016年 | 40篇 |
2015年 | 83篇 |
2014年 | 364篇 |
2013年 | 117篇 |
2012年 | 178篇 |
2011年 | 285篇 |
2010年 | 151篇 |
2009年 | 149篇 |
2008年 | 245篇 |
2007年 | 458篇 |
2006年 | 308篇 |
2005年 | 324篇 |
2004年 | 287篇 |
2003年 | 301篇 |
2002年 | 270篇 |
2001年 | 154篇 |
2000年 | 141篇 |
1999年 | 88篇 |
1998年 | 55篇 |
1997年 | 51篇 |
1996年 | 65篇 |
1995年 | 78篇 |
1994年 | 43篇 |
1993年 | 53篇 |
1992年 | 72篇 |
1991年 | 73篇 |
1990年 | 74篇 |
1989年 | 64篇 |
1988年 | 70篇 |
1987年 | 79篇 |
1986年 | 88篇 |
1985年 | 74篇 |
1984年 | 69篇 |
1983年 | 62篇 |
1982年 | 59篇 |
1981年 | 49篇 |
1960年 | 26篇 |
1959年 | 47篇 |
1958年 | 40篇 |
1957年 | 30篇 |
1956年 | 61篇 |
1955年 | 65篇 |
1954年 | 21篇 |
1953年 | 39篇 |
排序方式: 共有5850条查询结果,搜索用时 31 毫秒
101.
Kushalnagar P Topolski TD Schick B Edwards TC Skalicky AM Patrick DL 《Journal of deaf studies and deaf education》2011,16(4):512-523
Given the important role of parent-youth communication in adolescent well-being and quality of life, we sought to examine the relationship between specific communication variables and youth perceived quality of life in general and as a deaf or hard-of-hearing (DHH) individual. A convenience sample of 230 youth (mean age = 14.1, standard deviation = 2.2; 24% used sign only, 40% speech only, and 36% sign + speech) was surveyed on communication-related issues, generic and DHH-specific quality of life, and depression symptoms. Higher youth perception of their ability to understand parents' communication was significantly correlated with perceived quality of life as well as lower reported depressive symptoms and lower perceived stigma. Youth who use speech as their single mode of communication were more likely to report greater stigma associated with being DHH than youth who used both speech and sign. These findings demonstrate the importance of youths' perceptions of communication with their parents on generic and DHH-specific youth quality of life. 相似文献
102.
103.
Simkin P 《The Journal of perinatal education》2011,20(3):166-176
In this column, Kimmelin Hull, community manager of Science & Sensibility, Lamaze International's research blog, reprints and discusses a recent blog post series by acclaimed writer, lecturer, doula, and normal birth advocate Penny Simkin. Examined here is the fruitful dialog that ensued-including testimonies from blog readers about their own experiences with traumatic birth and subsequent posttraumatic stress disorder. Hull further highlights the impact traumatic birth has not only on the birthing woman but also on the labor team-including doulas and childbirth educators-and the implied need for debriefing processes for birth workers. Succinct tools for assessing a laboring woman's experience of pain versus suffering are offered by Simkin, along with Hull's added suggestions for application during the labor and birth process. 相似文献
104.
我经常收到一些读者投稿,作文前面往往附着自我简介之类的资料,这些文字往往很有灵气,就是家常话也给人一种很亲切的感觉。比如,有个同学爆料她的家庭,说爸爸生意失败,一家人过得很苦,后来爸爸振作精神去跑运输,又出了车祸。妹妹不太听话,吃 相似文献
105.
106.
周星驰了不得,一个人就能把千千万万男女老少逗得前仰后合稀里哗啦。不过,浩瀚搞笑天地,老是靠一人撑着顶着扛着玩着也实在难为他。偏偏他又喜欢孤身作战,老没下决心培养接班人,将周氏搞笑风采有计划有方向地传播延续下去。我等看在眼里,急在心里,特地为星爷苦心搜罗11位头号接班人,请无厘头掌门人尽早留心考察这些人选,争取在明年此时师徒并肩搞笑,星光DOUBLE灿烂! 相似文献
107.
The role of vision was examined as infants prepared to grasp horizontally and vertically oriented rods. Hand orientation was measured prior to contact to determine if infants differentially oriented their hands relative to the object's orientation. Infants reached for rods under different lighting conditions. Three experiments are reported in which (1) sight of the hand was removed (N = 12), (2) sight of the object was removed near the end of the reach (N = 40, including 10 adults), and (3) sight of the object was removed prior to reach onset (N = 9). Infants differentially oriented their hand to a similar extent regardless of lighting condition and similar to control conditions in which they could see the rod and hand throughout the reach. In preparation for reaching, infants may use the current sight of the object's orientation, or the memory of it, to orient the hand for grasping; sight of the hand had no effect on hand orientation. 相似文献
108.
伸展在晶格内的离子键很强,因此从晶格中移走离子是困难的。由于这个原因,离子型化合物具有较高的熔点和沸点。存在于共价型固体或液体中的分子间的作用力没有这样强(除1~2例外),使分子聚集在一起的作用力布遍于固体中也是不强的。考虑下列的气化热: 相似文献
109.
Diversity of Gram negative bacteria antagonistic against major pathogens of rice from rice seed in the tropic environment 总被引:2,自引:0,他引:2
INTRODUCTIONRiceseedharborsadozenofplantpathogen icbacteria (Gotoetal.,1 988;Xieetal.,1 998) .Thebacterialpathogenscausearangeofricediseases,someverydestructivewhileothershavenoeffectonricecropgrowth .Inthisstudy ,wefoundalargenumberofbacteriaasso ciatedw… 相似文献
110.
Marschark M Sapere P Convertino C Seewagen R 《Journal of deaf studies and deaf education》2005,10(1):38-50
Despite the importance of sign language interpreting for many deaf students, there is surprisingly little research concerning its effectiveness in the classroom. The limited research in this area is reviewed, and a new study is presented that included 23 interpreters, 105 deaf students, and 22 hearing students. Students saw two interpreted university-level lectures, each preceded by a test of prior content knowledge and followed by a post-lecture assessment of learning. A variety of demographic and qualitative data also were collected. Variables of primary interest included the effects of a match or mismatch between student interpreting preferences (interpreting vs. transliteration) and the actual mode of interpreting, student-interpreter familiarity, and interpreter experience. Results clarify previous contradictory findings concerning the importance of student interpreting preferences and extend earlier studies indicating that deaf students acquire less than hearing peers from interpreted college-level lectures. Issues relating to access and success in integrated academic settings are discussed as they relate to relations among student characteristics, interpreter characteristics, and educational settings. 相似文献