The rationality and inevitability of Lancang-mekong river sub-region tourism integration, its objectivity and practical significance, its urgency and stagnation;
次区域旅游一体化提出的合理性与必然性、客观性与现实性、紧迫性与滞后性；
The rationality and inevitability of Lancang-mekong river sub-region tourism integration, its objectivity and practical significance, its urgency and stagnation;
次区域旅游一体化提出的合理性与必然性、客观性与现实性、紧迫性与滞后性；
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