回复：真心请教grandland,细雨飞鹰，美国老土等知道SAP FI/CO

For those who specialize or have interest in SAP, check links below. BTW, Jon Reed is top probably number 1 SAP career expert in US, I have been following his articles for 10+ years, good luck:

http://www.jonerp.com/content/view/3/9/

http://searchSAP.techtarget.com/expert/Knowledgebase/0,289622,sid21,00.html

http://searchSAP.techtarget.com/expert/KnowledgebaseCategory/0,289620,sid21_tax292412,00.html