"The pledges will be conducive to solving problems on the road of China's development. With problems unsolved, we will never march forward," Xu added.
Hu underlined more efforts to combat corruption, one of the major complaints of the public. He vowed to strengthen the Party's advanced nature and purity.
"If we fail to handle this issue well, it could prove fatal to the Party, and even cause the collapse of the Party and the fall of the state," Hu warned.
Corruption remains a severe challenge to the Party. High-ranking officials such as former head of Chongqing Municipality Bo Xilai and former Minister of Railways Liu Zhijun were expelled from the Party and brought to justice over corruption.
The emphasis on purity shows the Party is clear-headed about the corruption situation, said Liu Qinglong, professor with the School of Public Policy and Management at Tsinghua University.
Liu said the current anti-corruption mechanisms should be reviewed carefully and the flaws mended to draw lessons from the graft cases of senior officials.
First alpine rail gets midnight maintenance