The best title for this passage is. If an object weighed one pound 8,000 miles above the earth, it would weigh on

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问题 The best title for this passage is______.
If an object weighed one pound 8,000 miles above the earth, it would weigh ______ on the surface of the earth.

选项 A、6 pounds
B、4 pounds
C、9 pounds
D、1/9 pound

答案D

解析从第三句第二句If you treble the distance，it gets nine times weaker (three times three)可知，如果距离变为原来的三倍，那么物体的重量就减少到原来的九分之一。故D为正确答案。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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The best title for this passage is______. If an object weighed one pound 8,000 miles above the earth, it would weigh ______ on

公共英语二级笔试

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