Most of the fresh water on Earth________.A.is in
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Most of the fresh water on Earth________.
A.is in the form of ice at the poles and on mountains
B.is stored underground
C.is found in rivers and lakes
D.comes from the rain
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答案：A
问题是“地球上绝大部分淡水以什么形式出现？”第二段中间提到淡水时，说到“three-quarters of this is in the form of ice at the poles and on mountains"，即3/4的淡水以冰的形式存在于两极和高山中，后面提到剩余部分的淡水存在于地下，但占比少于1%,所以选项A正确。