单选题 The latter half of the last sentence in paragraph 3, i. e. , "or one tourist for every person living in Spain" means ______.

A、 all the 37 million people living in Spain are tourists
B、 every Spanish is visited by a tourist every year
C、 every person living in Spain has to take care of a tourist
D、 every year almost as many tourists visit Spain as there are people living in that country

【正确答案】 D

【答案解析】[解析] 去西班牙旅行的游客人数与西班牙人口的比例达1:1，所以选D。