传统报业面对眼前困境和未来发展,正在进行前所未有的转型.本文就转型中多元化经营的方向进行分析,提出值得注意的问题.转型不是转行.多元化经营从根本上来说就是要发展壮大主业,即巩固和发展好报纸及其办的新媒体的舆论传播阵地.

繁中求简，媒体核心价值观并没有那么“高大上”，坚持做好每一次的新闻内容加工，就是媒体核心价值观最佳的呈现。

Chinese character is an important part of teaching Chinese as a second language.Chinese characteristics and acquisition rules make it difficult to learn.With the global development of Chinese character teaching,teaching Chinese requires personalized learning.Chinese character teaching with technical support faces new opportunities and challenges.This paper summarizes the current practice of technological achievements in Chinese character teaching,which contains the multimedia technology,Chinese information processing technology,and network technology.In view of the existing problems such as the lack of digital Chinese character teaching resources,dis-satisfaction with personalized learning needs,the deficiency of learning environment interaction,and the lack of ready-to-use pragmatic learning services,we believe that mobile technology,multimodal technology and learning analytics technology under the cloud terminal and cloud service environment,will become the trend of technology application to meet the new situation of the multiple needs of the world Chinese character teaching.

透析低血压是血液透析中最常见的并发症之一,发生率可达20%～30%[1].透析低血压的一个重要原因是过多脱水导致的血容量显著下降,血容量下降超过15%时极易发生低血压,而与总体液量下降无关[2].2002年2月-2004年12月,本研究对21例在我科血液净化中心维持性血液透析常发生透析低血压的患者,在透析时使用钠泵400次,以有效地预防低血压的发生,透析1个月后检查透析前后血生化指标,显示血钠浓度变化不明显,现报道如下。