The maiidea of this text is to ( )
· explaithe difference betweethe old and modermuseums
· encourage people to go to America
· introduce changes imodermuseums
· show people advantages to go museums

单选题
· people become interested if they take part
· The intention of these changes is only to providing fun.
· Because they are better educated.
·3,000.
· introduce changes in modern museums