File photo shows Zhang Dejiang (R), then working in the Ministry of Civil Affairs, visits a centenarian woman during his investigation in rural nursing homes in central China's Henan Province (XINHUA)
File photo taken on August 20, 1998 shows Zhang Dejiang (R) visits flood-affected people to direct the disaster relief work in Gashigen Township of Zhenlai County in northeast China's Jilin Province (XINHUA)
File photo taken on October 24, 1998 shows Zhang Dejiang (R) inspects a private enterprise in east China's Zhejiang Province (XINHUA)
File photo taken on June 2, 2004 shows Zhang Dejiang (C) attends the Pan-Pearl River Delta (PPRD) Regional Cooperation and Development Forum (XINHUA)
File photo taken on June 29, 2008 shows Zhang Dejiang (R, front) talks to people during a job fair to inspect the employment assistance efforts for quake-affected Dujiangyan City, southwest China's Sichuan Province (XINHUA)
File photo taken on September 2, 2008 shows Zhang Dejiang (C, front) investigates the production and management work of Sinopec Yanshan Company (XINHUA)
File photo taken on March 29, 2010 shows Zhang Dejiang (L, front) directs the rescue work at the site of the flooding accident of Wangjialing Coal Mine (XINHUA)
File photo taken on February 26, 2011 shows Zhang Dejiang (C) holds a meeting to organize the evacuation of Chinese nationals in Libya and ensure their safety (XINHUA)
File photo taken on January 18, 2012 shows Zhang Dejiang (2nd, R) visits residents during a study tour on urban and rural pension insurance systems in Beijing, capital of China (XINHUA)
File photo taken on May 30, 2012 shows Zhang Dejiang (R) visits children to celebrate the International Children's Day in Chongqing, southwest China (XINHUA)