Photo shows a distant view of Mount Qomolangma, the highest peak in the world which stands at an altitude of 8844.43 meters, and frozen Rongpu River, in southwest China's Tibet Autonomous Region. (Xinhua/Liu Ziming)

Photo shows a distant view of Mount Qomolangma, the highest peak in the world which stands at an altitude of 8844.43 meters, in southwest China's Tibet Autonomous Region. (Xinhua/Liu Dongjun)

Photo shows a height monument of Mount Qomolangma, the highest peak in the world which stands at an altitude of 8844.43 meters, in southwest China's Tibet Autonomous Region. (Xinhua/Liu Dongjun)