Threeengineersandthreeaccountants(会计)aretravelingbytraintoaconference.Atthestation,thethreeaccountantseachbuyticketsandwatchasthethreeengineersbuyonlyasingleticket. |
A.onlyoneofthemneedbuyaticket |
B.thethreeaccountantsbuyticketsforthem |
C.theyjustwanttosavemoney |
D.theyaretoopoortobuymoretickets |
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