单项选择题
方阵的特征值分别是()。
A.9.9473,-2.9736+1.5220i,-2.9736-1.5220i
B.9.9473,-2.9736+1.5220i,-2.9736+1.5220i
C.9.9473,-2.9736-1.5220i,-2.9736-1.5220i
D.-9.9473,-2.9736+1.5220i,-2.9736-1.5220i
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