帮人问的，请问b 和f 小题相关资料详见：
http://www.scoach.ch/en/know-how/product-know-how/yield-enhancement-products/discount-certificates
http://markets.rbs.com/EN/Showpage.aspx?pageID=540
http://www.dbwarrants.com.sg/EN/showpage.asp?pageid=139&insuprnr=156