InEurope_______arethetwoleadingcontendersforaglobalreservationssystem.
A、SABREandGALILEOC
暂无解析
It_______fortwohoursnow
______isrecognizedasthenationalflag-carrier.
WhichofthefollowingisnotmentionedasWTO'sobjective?
______aretheprimarydestinationsfortheChineseatpresent.
Tourist expenditures have different effects on a destination economy:sales by food vendors to restaurants are _______ effect;while taxi fares and airline ticket sales are _______ effect.
