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            • 1. 设点\(M\)的柱坐标为\(\left( \sqrt{2}, \dfrac{5π}{4}, \sqrt{2}\right) \),则它的球坐标为\((\)  \()\)
              A.\(\left(2, \dfrac{π}{4}, \dfrac{π}{4}\right) \)
              B.\(\left(2, \dfrac{π}{4}, \dfrac{5π}{4}\right) \)
              C.\(\left(2, \dfrac{5π}{4}, \dfrac{π}{4}\right) \)
              D.\(\left(2, \dfrac{3π}{4}, \dfrac{π}{4}\right) \)
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