下载：
缩小数字鸿沟对于确保所有美国人都能从现代数字经济中获得收益至关重要，无论我们身在何处。因此，华盛顿必须采取鼓励公共和私人对单机麻将下载网络进行投资的政策。
资料来源：
1. //www.census.gov/newsroom/press-releases/2016/cb16-210.html
2. //smallbusiness.house.gov/issues/issue/?IssueID=5966
3. http://www.marketwired.com/press-release/new-research-from-learning-house-aslanian-market-research-debunks-online-college-student-2143911.htm
4. http://www.npr.org/sections/health-shots/2017/07/14/535792864/doctor-shortage-in-rural-arizona-sparks-another-crisis-in-forgotten-america
5. http://www.pewinternet.org/fact-sheet/internet-broadband/
6. //www.xdshimian.com/broadband-industry-stats/investment/historical-broadband-provider-capex