Passage FiveValencia is in the east part of Spain. It has a port on the sea, two miles away from the coast. It is the capital of a province that is also named Valencia.The city is a market center for what is produced by the land around the city. Most of the city's money is made from farming. It is also a busy business city, with ships, railways clothes and machine factories.Valencia has an old part with white buildings, colored roofs, and narrow streets. The modern part has long, wide streets and new buildings. Valencia is well known for its parks and gardens. It has many old churches and museums. The University in the center of the city was built in the 13th century.The city of Valencia has been known since the 2nd century. In the 8th century it was the capital of Spain. There is also an important city in Venezuela（委内瑞拉）named Valencia.What is the main difference between the two parts of the city?
A、The color of the buildings
B、The age of the buildings
C、The color of the roof
D、The length of the streets
【正确答案】：B
【题目解析】：参考文章第三段，主要区别就是建筑物的年代。
