Former NBA player Yao Ming, a promotion ambassador of the 2022 bid, said Beijing's infrastructure and experience as a 2008 host made it "a prime candidate".

Shen Xue, a former Olympic champion and one of six bid ambassadors, said on Wednesday: "I believe Beijing will do its best to win the hosting right. I am eagerly waiting for Beijing to be the first city in history to host both the summer and winter Olympics."

Beijing handed over its official bid to IOC last month, promising to deliver an "athletes-centered, sustainable and economical" Olympics.

IOC president Thomas Bach had said that Beijing's vision complied with IOC's reforms.

In the report, Beijing stressed athletes will be put at the center of the Games.

"Athletes' convenience will be a primary criteria. Our service will be comprehensive and of high-level in training, competition, accommodation, transportation, catering, medical care and cultural communication," said Beijing mayor and bid president Wang Anshun.

Wang said Beijing will make a meticulous budget plan to lower cost on the condition that the Games can be staged successfully.

"Beijing will lower the cost of staging the Games through thorough marketing, proper arrangement of venues and activities on the condition that the Games can be delivered successfully," he said.

According to the report, stadiums from the Beijing 2008 Olympics, including the Water Cube swimming center and the national indoor stadium, can serve as 2022 venues.

If Beijing wins the bid, some of the 2022 venues will be set up in Zhangjiakou, a Hebei province city some 200 kilometers northwest of Beijing. Beijing is going to host ice sports with snow events to be held in Zhangjiakou.