Trắc nghiệm: Ecotourism is one of the fastest growing sectors of tourism. ____ growths of 10-15% annually worldwide. | Gửi trắc nghiệm |
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Trắc nghiệm: Ecotourism is one of the fastest growing sectors of tourism. ____ growths of 10-15% annually worldwide. | Gửi trắc nghiệm |