The following are the factors that have contributed to the devel

The following are the factors that have contributed to the development of the U. S. economy except___.
A、the vast space and resources of the land
B、the ideals of freedom and economic opportunity
C、English as its national language
D、hard work by the people
【正确答案】：C
【题目解析】：促成美国经济发展的因素是：广阔的国土空间和丰富的资源，自由的理想和经济的机遇，人民的辛勤劳动。