设矩阵是阶方阵的伴随矩阵,为单位矩阵,下列结论不正确的是( )

A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542245010212fd2f2bd8ffe942cbaadf789380ac14e5image20.png">

B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542245010308d353ecaf96274bc7959869d9c21dd15eimage21.png">

C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15422454803534c7e89d2cc8941b2b18113bd7c772923.png" alt="上传图片"><br>

D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15422450104924855aba73b36482b8d23e8c6f771d11eimage23.png">