A:要大力发展对外文化贸易,积极引进具有市场竞争力的文化产品
B:要充分挖掘我国文化资源,增强民族文化产业的国际竞争力
C:要树立品牌意识,加大对民族文化的保护力度
D:要警惕外来文化的渗透,维护国家的文化安全
— ______ people travel every year?
— Perhaps when we are talking about it, more than 100 planes have taken off around the world.