【解题导语】 美国中央公园的建设耗时十五年，在一片不毛之地上用人力将石块和土方堆积而成。公园设施齐全，风景优美，生物资源丰富。中央公园被称为美国园林建筑的奇迹。
1．What is mainly talked about in the passage?
A．The design competition that took place in 1858.
B．How workers built Central Park.
C．Central Park attracts millions of visitors every year.
D．The first public park in the United States.
解析：选D。考查主旨大意。综观全文可知，本文主要介绍的是美国第一个公园——中央公园。
