During the 1920s and 1930s，________ was one of the fastest growing segments of the international tourism industry．
A.train tourism B.coach tourism C.cruise tourism D.air tourism正确答案C
During the 1920s and 1930s，________ was one of the fastest growing segments of the international tourism industry．
A.train tourism B.coach tourism C.cruise tourism D.air tourism正确答案C
