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In the figure, a smaller semi-circle is in the larger semi-circle. A and B are centers of these two semi-circles, respectively. What is the area of the shaded part?
(1)The radius of the larger semi-circle is 15
(2)AB =3
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: E

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