2. 职称英语
  3. Fresh water supplies in Asia and south America is disappearing as the glaciers m

Fresh water supplies in Asia and south America is disappearing as the glaciers m

游客2023-09-15  50
问题 Fresh water supplies in Asia and south America is disappearing as the glaciers melt away. [br] The existing satellites are not good at detecting the thickness of the ice partly because the orbits of satellites with ______do not cover every portion of the ocean.
选项
答案 radar altimeters。
解析 根据题干中的信息词satellites、detecting the thickness和orbits定位到倒数第二个小标题下的第三段，可知现有的人造卫星可以很好地测量冰的覆盖范围，却不太擅长测量厚度，其部分原因在于带有雷达测高计的卫星的轨道无法覆盖大海的各个部分。
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