1. The weather makes rescue work difficult, and high altitude and the cold also pose dangers to the victims.
2. Twelve of them fell into a coma through a lack of oxygen from the high altitude after their vehicle broke down.
3. Everest this spring to research how high altitude affects the human body, members of the Japanese team said Wednesday.
4. The iron rings rush into high altitude when firecrackers explode, which means real battle immediately begins.
5. The Olympic torch was designed by a Chinese aerospace company to ensure that it stays alight at high altitude.
6. The difficulties of relief work were beyond our imagination for lack of oxygen at such a high altitude.
7. House dust mites live in all climates even at high altitude, especially in bedrooms and kitchens.
8. There is a Swiss Sports & High Altitude Centre, which offers excellent facilities.
9. China's military authority has quadrupled medicine supplies to the military stationed at high altitude areas to combat high altitude sickness that troubled many soldiers.
10. The incredibly green high altitude grasslands lined the route and snow capped mountains began peeping from the background between peaks.