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计算$ D=\left|\begin{array}{ccccc}
0 & \cdots & 0 & 1 & 0 \\
0 & \cdots & 2 & 0 & 0 \\
\vdots & & \vdots & \vdots & \vdots \\
n-1 & \cdots & 0 & 0 & 0 \\
0 & \cdots & 0 & 0 & n
\end{array}\right|$
                        
不再提醒