旅游产业增加值是衡量旅游产业对GDP贡献的科学标准；

This paper holds that the adding value of tourism industry is the scientific criteria to measure its contribution to GDP;

youdao

旅游产业增加值是衡量旅游产业对GDP贡献的科学标准；

This paper holds that the adding value of tourism industry is the scientific criteria to measure its contribution to GDP;

youdao