According to the research report of China National Tourism Research Institute, it is estimated that the number of tourists during Mid-Autumn Festival and National Day holidays in 20 13 will be 439 mil

According to the research report of China National Tourism Research Institute, it is estimated that the number of tourists during Mid-Autumn Festival and National Day holidays in 20 13 will be 439 million. According to comparable caliber, B

Test and analysis: The factors that affect consumption are: income and economic development level. Among them, income is the basis and premise of consumption, and the level of economic development is the fundamental factor affecting consumption. The increasingly popular tourism market in China is fundamentally benefited from the continuous development of China's economy and the increase of people's income. The answer is B.