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   1488篇
  免费   58篇
  国内免费   81篇
  2023年   12篇
  2021年   13篇
  2020年   34篇
  2019年   27篇
  2018年   47篇
  2017年   33篇
  2016年   33篇
  2015年   37篇
  2014年   38篇
  2013年   163篇
  2012年   65篇
  2011年   66篇
  2010年   43篇
  2009年   57篇
  2008年   85篇
  2007年   78篇
  2006年   56篇
  2005年   47篇
  2004年   49篇
  2003年   47篇
  2002年   38篇
  2001年   16篇
  2000年   20篇
  1999年   25篇
  1998年   24篇
  1997年   23篇
  1996年   19篇
  1994年   14篇
  1993年   12篇
  1992年   17篇
  1991年   16篇
  1990年   13篇
  1989年   11篇
  1988年   16篇
  1987年   13篇
  1986年   12篇
  1985年   16篇
  1984年   13篇
  1983年   13篇
  1982年   13篇
  1981年   13篇
  1979年   19篇
  1978年   15篇
  1977年   15篇
  1976年   25篇
  1975年   17篇
  1974年   13篇
  1973年   12篇
  1972年   11篇
  1970年   10篇
排序方式: 共有1627条查询结果,搜索用时 15 毫秒
1.
2.
3.
全真道何时传入燕京①,已无确切资料可考,但全真道著名人物至燕京活动,始于金世宗召见七真之一的王处一。大定二十七年(1187年),七真中最以神异著称的王处一奉诏赴京,世宗亲问以养生之道,并命居天长观②。次年二月,七真之一的丘处机也奉诏赴京③。王处一和丘处机先后被召至燕京  相似文献   
4.
5.
The purposes of this study were to assess the career development needs of entering medical students as measured by the Medical Career Development Inventory and to examine gender differences in responses to the inventory. A total of 115 entering medical students (representing two entering classes) took the inventory two months prior to matriculation. Analysis suggested that this sample of entering students had formed a vocational identity and that they had evaluated the suitability and viability of a commitment to a physician's career. However, the participants had not formed a clear picture of their specialty interest and goals. No significant gender differences were indicated. A recommended career assistance workshop is presented as appropriate for these students' needs.  相似文献   
6.
The present research examined the role of phonological and orthographic properties of cues in mediating the retrieval of words from the mental lexicon. The task required subjects to resolve fragmented words when provided with semantically related cues (e.g., spiteful:---DIC----). Phonological properties of the letter cues were manipulated such that the letters either corresponded to the syllables (e.g., DIC in vindictive) or nonsyllables (NDI) in the word. Orthographic properties of the letter cues were manipulated by selecting letter groups that either co-occurred frequently in the language or did not. In two experiments, results revealed little or no effect of the phonological variable (syllables) but a reliable effect of the orthographic variable (letter-cue frequency). Letter cues with a low frequency of co-occurrence in the language led to better completion of the fragmented words. We interpret these findings as support for models of lexical representation that are based on orthographic properties (e.g., Seidenberg & McClelland, 1989) rather than those based on phonological constraints.  相似文献   
7.
8.
9.
[The author identifies] five problems familiar to clinical ethicists. (1) Physicians often do not recognize important ethical issues. (2) Debate exists over whether such consultations should give specific management recommendations. (3) Principles of medical ethics cannot, by themselves, resolve real ethical issues. (4) The patient's interests sometimes conflict with the interests of the family, the health professionals, and the hospital. (5) Clinical ethics consultations take a toll on the consultant....[He] discuss[es] the implications of each problem for clinical ethics consultations and offer[s] a solution to it.  相似文献   
10.
A combined multi-attribute utility and expectancy-value model has repeatedly been found to yield a worse fit to choices than to preference ratings. The present study investigated two possible explanations for this finding. First, people's belief-value structures may change in the choice task as they try to find the best alternative. Second, a difficult choice task may cause the decision maker to use simplifying heuristics. In the first of two experiments, subjective belief-value structures were measured on two occasions separated by about one week. Immediately before the second measurement, different groups of subjects performed a choice task, gave preference ratings, or performed a control task. The results did not support an interpretation of the greater difficulty of predicting choices in terms of changes in belief-value structures. However, the notion of simplifying heuristics received support by the finding that adopting simpler versions of the original model improved the predictions of the choices. In the second experiment, beliefs were measured immediately before or after each of a series of choices or preference ratings. The results indicated that although temporary changes in beliefs may occur, they can hardly provide a full account of the differential predictability of preferences and choices.  相似文献   
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