AD缩写的意思

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