The closure of the sites comes a year after Chinese and US police agreed to cooperate in this field.
Steve Jobs' resignation as Apple Inc's CEO won't have much impact on the Chinese market.
China needs to increase direct investment in the United States, said a think tank.
ConocoPhillips China, under pressure to give out definitive answers over two leaking oil platforms, failed to deliver the goods this week.
Renren, a Chinese social networking website, will integrate its services with MSN, Microsoft's Internet portal, the companies announced on Wednesday.
The Pentagon welcomed China's contribution to international safety and security in its annual report.
Hertz already offers EV rental services in the United States and Europe. The company operates in more than 8,500 cities in 146 countries.
When Ed Chan took over as Walmart China's president and chief executive officer in 2007, his mission was to keep the business growing in the emerging market, because the chain retailer had sold its outlets in South Korea and Germany the year before.
The Chinese retail market is blossoming, though the rest of world is slowing down, and competition among domestic and foreign retailers is becoming increasingly fierce.
BEIJING - China's economic development is facing unprecedented challenges amid worldwide financial uncertainties resulting from the risk of debt default by some developed economies, analysts said.
Retail giant maintained double-digit growth and quadrupled outlets over past four years.
BEIJING - China's economic development is facing unprecedented challenges amid worldwide financial uncertainties resulting from the risk of debt default by some developed economies, analysts said.