国际期刊论文 ye yonggang and ya jiaqi,2013.“macroeconomics framework considered r**k factors:based on default d**tance”,romanian journal of economic forecasting,vol.16,pp.124-133.ye yonggang and chen bote,2...
展开全部·yihua chen,min yin,geoff p.horsman,and ben shen.(2011)improvement of the enediyne antitumor antibiotic c-1027 production by manipulating its biosynthetic pathway regulation in streptomyces glob**...
(1)李君,谭利华,邱维理,黄羊滩沙地的形成及其对北京沙尘暴天气的影响。北京师范大学学报(自然科学版),2002,38(2):279~28 (2)youli li,jingchun yang,lihua tan,fengjun duan,impact of tectonics on alluvial landforms in the hexi corridor.geomorphology,1999...