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题目内容
（川北医学院口腔医学院）
都是
阶矩阵,且
,则必有( )·
·
·
·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1701069995948e1e70144ad104e5dad7b2bd0f403d5cdimage23.png" <img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1701069995981fcb4e5ccefe34d4b8189cc8c15805d67image24.png" 或<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/170106999603055106c45164e47b697e06fdea76a71ebimage25.png"
参考答案
