2016 1 2 3 4 55-C credit evaluating model 6the profit rate level of a company is mostly determined by( ) A.risk B.function C.sals D.asset 7 8 9( )invovled Export Buyer's Credit A.exporter B.Sinosure C.importer D.financing banks 1015% 11 A. B. C. D. 12 13 A. B.C.D. 14 A. B.C.D.E. 15 A. B.C. D. 16 17 A.B. C. D. 18 19。。。。。。以下内容略