BEIJING - A total of 2,270 delegates have been elected to participate in the 18th National Congress of the Communist Party of China (CPC) scheduled to open in Beijing on Thursday.

For the first time assessments on preliminary nominees have been carried out, with an average margin ratio of 13.4 percent in 40 electoral units of 31 provinces, autonomous regions and municipalities.

During the election, candidates outnumbered elected delegates by over 15 percent, compared with no less than 15 percent during the election of delegates to the 17th CPC National Congress, and about 10 percent at the 16th CPC National Congress.

The election began with the recommendation of preliminary nominees at the Party's grassroots units, followed by the assessments on preliminary nominees, the publication of the namelist of preliminary nominees, the confirmation of final candidates, and the election of delegates.