ctor,IF)是美国ISI(科学信息研究所)的JCR(期刊引证报告)中的一项数据。一个国际上通行的期刊评价指标,由于它是一个相对统计量,所以可公平地评价和处理各类期刊。 SCI IF=2的意思就是说要去期刊的影响因子等于2。10分享举报您可能感兴趣的内容广告 jj麻将技巧下载赢大奖!_麻将赢牌技巧 麻将技巧-随时开局,真...
aAlthough people often talk as if theory and practice are different things, as in“that is only theoretical,” nothing is more practical than a good theory. Theory helps make sense of complex situations by directing attention to key issues and by guiding methods of analysis. This paper presents...