A comparative study on imported and domestic low-molecular weight-heparin calcium in the treatment of acute coronary syndrome;
国产与进口低分子肝素钙治疗急性冠脉综合征的对照观察
First,the paper analyzes the status quo of Chinese imports of waste paper in large quantities,including the features and causes of waste paper imports.
中国是世界进口废纸第一大国。
This article established a function model of endogenous growth with transitional dynamics, and analyzed the contribution of imports to economic growth in China from empirical angle during 1979-2005.
利用具有转移动态的内生增长函数模型,对我国1979~2005年间的进口贸易对经济增长的促进作用进行实证分析。