NSA缩写的意思

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