系统(Systems)->项目集(Programms)->项目(Projects) 系统: A group of elements, either human or nonhuman, that is organized and arranged in such a way that the elements can act as a whole toward achieving some common goal or objective. 项目集: Programs can be construed as the necessary first-level elements of a system. Programs can be regarded as subsystems. However, programs are gene...
Lau Kiat (All is well.)
2020-06-17 18:56:05 1人喜欢
北有嘉鱼
2012-11-12 22:25:06 1人喜欢
北有嘉鱼
2012-11-12 22:20:39
海棠依旧
2011-12-30 10:11:20 1人喜欢
海棠依旧
2011-12-30 09:07:58
海棠依旧
2011-12-06 22:28:42
海棠依旧
2011-12-06 21:41:21
海棠依旧
2011-12-06 18:24:37
海棠依旧
2011-12-05 16:44:15
西红柿炒蛋 (2014.8.17别忘了这是结婚纪念日)
2011-10-11 13:20:59