（ ）is the first of many Earth-orbiting satellites designed for observation of the Earth’s land areas.
A: Landsat 1
B: IKONOS
C: SPOT
D: QUICKBIRD
A: Landsat 1
B: IKONOS
C: SPOT
D: QUICKBIRD
举一反三
- 34. Cospas-Sarsat comprises a several near polar orbiting satellites and一． A: a network of land based earth stations B: several coast stations C: an earth station D: some RCCs
- It is possible to use satellites to predict earthquakes because satellites ________. A: take pictures of the Earth B: catch radio waves sent from the Earth’s surface C: are sensitive to Earth’s movements D: see almost the entire Earth
- 世界上唯一能提供亚米级分辨率的商业卫星的是（） A: landsat卫星 B: SPOT卫星 C: IKONOS卫星 D: QuickBird卫星
- 下列卫星哪个属于气象卫星 A: NOAA B: SPOT C: LandSat D: QuickBird
- Please identify the cause in each of the following situation. In recent decades, many people have poured into the cities and the cities have grown so large that now about 50% of the Earth's population lives in urban areas. A: The cities have grown so large. B: Many people have poured into the cities. C: Now about 50% of the Earth's population lives in urban areas. D: None of them.