2. 外语
  3. The phrase "the word" in the first line of the passage refers to ______. What percentage of the earth’s water can man actually

The phrase "the word" in the first line of the passage refers to ______. What percentage of the earth’s water can man actually

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问题 The phrase "the word" in the first line of the passage refers to ______.
What percentage of the earth’s water can man actually use at present?
选项 A、Nearly 75 percent.
B、About 97 percent.
C、Exactly 3 percent.
D、Less than 3 percent.
答案D
解析 问题问“人类能使用的水在地球上总的水量中占百分之几?”而备选项也都是百分数的形式，因此注意文章中包含百分数的句子。于是在第1段找到答案相关句，确认答案为D(小于3％)。
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