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<p>设A，B是n(n≥2)阶方阵，则必有().《》() <img alt="" src="https://learnfile
分类: 数学2 (军队文职)
发布时间: 2023-11-03 09:29
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设A，B是n(n≥2)阶方阵，则必有().《》()
A.A
B.B
C.C
D.D
正确答案是C
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