关于口令认证机制，下列说法正确的是____。
A、实现代价最低，安全性最高B
暂无解析
Wetaketheliberty____writingtoyouwithahopetogetyourbestoffersforChinesebicycles.
When_thecontract,pleaseincludethearbitrationclause.
Managersset_____anddecidehowtheircompanycanachievethem.
Wearegladtoallowyou5%commissionwiththeview______businessrelationswithyou.
Whenthesellerreceivesthebuyer’scounter-offer,andhefindssometermsandconditionsunacceptabletohim,hewillstatehisownopinionsinaletter,whichiscalledas_____。
