Chinese Mount Qomolangma Expedition members are on their way to the camp at the altitude of 7,028m on May 19, 2005. They scaled Mount Qomolangma, also known as Mount Everest, at 11:08 a.m. May 22, 2005. They are on a mission to remeasure the height of the earth's summit. (Xinhua Photo)

The file photo taken on May 19, 2005 shows Ji Ji, a member of Chinese Mount Qomolangma Expedition, heads for the camp at the altitude of 7,028 meters.

In this file photo taken on May 19, 2005, Ji Ji, a member of Chinese mountaineers, starts her journey from a camp at 6,500 meters on May 19, 2005. (Xinhua Photo)

In this file photo taken on May 19, 2005, Ji Ji(R), a member of Chinese Mount Qomolangma Expedition, makes preparation for her last rush for the top in a camp at the altitude of 6,500 meters. (Xinhua photo)