The best title for the passage is ______. In the last sentence of the passage, the phrase "these tools" refers to ______.

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问题 The best title for the passage is ______.
In the last sentence of the passage, the phrase "these tools" refers to ______.

选项 A、mathematics and physics
B、weather forecasts
C、meteorological problems
D、economic advantage

答案A

解析 指代关系题。这一点从这几个词在最后一段的前后关系中看得很清楚:The tools needed to advance our knowledge in this way are the disciplines of mathematics and physics…。
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