GBl7859借鉴了TCSEC标准，这个TCSEC是____国家标准。
C
暂无解析
TheWorldPopulationExplosion
Doyouthinkcompaniesshouldprovidesportsfacilitiesfortheirstaff?(Why?)
Wefindbothpriceandqualityofyourproductssatisfactorytoourclientandwearepleasedtogiveyouaorderfortheitemsonthissheet.
Aworkingfireextinguisher
Ifyouincreaseyourinitialorderto30,000,Isupposewecouldconsiderreducingthepriceto300,080$perunit.