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题目来源1 : The Princeton Review
正确率：30%
难度：5
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In the figure above, line L is tangent to the circle, which is centered at the origin. The area of the shaded region is equal to the circumference of a circle with radius between 1 and 2$$(\frac{1}{4})$$. Which of the following could be values of x ?Indicate all possible values.
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以上解析由 考满分老师提供。
