DF缩写的意思

BEC M.A.Ed MJ UC XQ PG AR WD CLEP CFR AQ ROI AAS ESP TA TFF AJED M.I.E. ADELAIDE PE PTT NSA BAEE ME A-level ORC DILS B.Eng CBC TWE AC CTC OT AAU ALR RA DNA UQ NJTV UD WP UofMELB HE B.Eng.Mgt OP B.RM AIE SWJTU LA M.Ec. TESOL ABC HKUST DT BL AD MCAT ADIDA MSME B.S.Ed