判断商业票据有效性的依据是()。
D
暂无解析
Astothevariouspollutions,whichofthefollowingisNOTtrue?
Onaverageabout￡5000ayearisspentoneachprivateschoolpupil,_______theamountspentonstateschoolpupils.
Wecannot_____thecountry’stelecommunicationstounqualifiedpeople。
InEurope_______arethetwoleadingcontendersforaglobalreservationssystem.
有论者认为新闻起源于人类与生俱来的好奇心，这种起源观属于()。