Puerto Rico may be part often USA but its music and dance is a mixture of both Spanish and American rhythms (节奏). The country, as a result, is a mixture of the new and the old. It exhibits the open American way of life yet maintains formal Spanish influences (影响). (76) This is shown in the buildings, not just in the difference between old and modem urban areas but also in the countryside, where older buildings sit side by side with schools and houses. It is found in the cooking, too many fast food restaurants together with local cooking which has its roots in the mixture of culture of all the Caribbean and in the music-rock music is played in beach holiday centers but in the hilly center, Puerto Rican music can be heard. Old volcanic mountains, long and motionless, take up a large part of the island's center, with the highest peak, Cerro de Punta, at 1,338 meters in the Cordillera Central. The mountains are surrounded by a coastal plain with Atlantic shore beaches cooled all year round by trade winds. The population is 3.8 million, of which about 1.5 million live in San Juan, although about another two million Puerto Ricans live in the USA. (77) The average lifespan is 73.8 years and GDP per capita is US＄12, 212, the highest in Latin America, although not up to the level of the continental USA. The people are largely a mixture of Amerindian, TainoArawak, Spanish and African. Most Puerto Ricans do not speak English and less than 30% speak it well. The people are very friendly and hospitable, but there is law-breaking action linked to drags and unemployment. It can be learned from the passage that ______ .