一、单选题（共15题，100.0分）2.（单选题，6.6分）关于n阶行列式D=}a_(11)&a_(12)&...&a_(1n)a_(21)&a_(22)&...&a_(2n)vdots&vdots&...&vdotsa_(n1)&a_(n2)&...&a_(nn)描述错误的是（）A 以上结论都不正确B 行列式D=sum_(j_{1),j_(2),...,j_(n)为n阶排列}(-1)^f(j_(1,j_{2),...,j_(n))}a_(1j_{1)}a_(2j_{2)}... a_(nj_{n)}C 行列式D=sum_(i_{1),i_(2),...,i_(n)为n阶排列}(-1)^f(i_(1,i_{2),...,i_(n))}a_(1i_{1)}a_(2i_{2)}... a_(ni_{n)}D 行列式D=sum_(k_{1),k_(2),...,k_(n)为n阶排列}(-1)^f(k_(1,k_{2),...,k_(n))}a_(1k_{1)}a_(2k_{2)}... a_(nk_{n)}

一、单选题（共15题，100.0分） 2.（单选题，6.6分） 关于n阶行列式$D=\begin{vmatrix}a_{11}&a_{12}&\cdots&a_{1n}\\a_{21}&a_{22}&\cdots&a_{2n}\\\vdots&\vdots&\cdots&\vdots\\a_{n1}&a_{n2}&\cdots&a_{nn}\end{vmatrix}$描述错误的是（） A 以上结论都不正确 B 行列式$D=\sum_{j_{1},j_{2},\cdots,j_{n}为n阶排列}(-1)^{f(j_{1},j_{2},\cdots,j_{n})}a_{1j_{1}}a_{2j_{2}}\cdots a_{nj_{n}}$ C 行列式$D=\sum_{i_{1},i_{2},\cdots,i_{n}为n阶排列}(-1)^{f(i_{1},i_{2},\cdots,i_{n})}a_{1i_{1}}a_{2i_{2}}\cdots a_{ni_{n}}$ D 行列式$D=\sum_{k_{1},k_{2},\cdots,k_{n}为n阶排列}(-1)^{f(k_{1},k_{2},\cdots,k_{n})}a_{1k_{1}}a_{2k_{2}}\cdots a_{nk_{n}}$