老年便秘患者,大便或3~5日1行,或1周1行,甚至更久;或者次数不减,但便质干燥坚硬,排出困难;也有少数患者,虽有便意,大便并不干硬,但排便困难,不能顺利排出;更有患者,由于便时
[Objective] The aim was to study climate changes in northern Tianshan in Xinjiang and its influences on runoff. [Method] Based on the runoff data for 54 years o
Based on seven carbon sources including chemical fertilizer,pesticide,agricultural film,nitrogen fertilization,agricultural machinery,irrigation and straw burni
[Objective] The aim was to study the ecological footprint and sustainable development in Karst Area. [Method] By dint of statistical data of Anshun City in 2008
[Objective] The aim was to study the obtaining method of meticulous climate forecast product and test its forecast effect. [Method] Based on the national standa
本文以联通电子商务业务稽核系统为例,把工作流技术应用到软件设计中,将工作流过程分解成任务、角色,按照一定的规则来执行这些任务并对它们进行监控,可以提高办事效率、降低管理
[Objective] The research aimed to study the variation characteristics of temperature and precipitation in Benxi area under the background of climate warming.[Me
[摘 要]本文试图在剖析美国“次贷危机”的基础上,通过对比中美房地产市场的异同,分析我国宏观经济环境下房地产市场面临的主要问题,从而提出完善我国房地产市场宏观调控的建议。 [关键词]次贷危机;房地产市场;宏观调控 [中图分类号]F830 [文献标识码]A [文章编号]1005-6432(2009)35-0016-02 1 “次贷危机”的产生及原因分析 “次贷危机”即美国次级房贷危机
[Objective] The research aimed to study the structure and propagation characteristics of climatological mean kinetic energy of disturbance of intraseasonal osci
[Objective]The study aims to discuss the impact factors of COD (chemical oxygen demand) throughput in corncob extract. [Method] Firstly,as the variations of the