【简答题】Are you one of those people who are afraid of buying plane tickets online, and would rather call the airlines and talk to a “real live person”? It is understandable that the airlines are encouraging u...
【简答题】[A] As information is passed around, important qualifiers are lost. A rumour may start as "I'm not sure if this is true, but I heard that..." Then it evolves into: "I heard that..." Finally it becomes...