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Gaokao Math Practice Question

已知正四棱雉 $S-A B C D$ 中, $S A=2 \sqrt{3}$, 那么当该棱雉的体积最大时, 它的高为 ($\qquad$)

  1. A.1
  2. B.$\sqrt{3}$
  3. C.2
  4. D.3

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