已知 $n$ 维向量 $\boldsymbol{\alpha}_1, \boldsymbol{\alpha}_2, \cdots \boldsymbol{\alpha}_s, \boldsymbol{\beta}_1, \boldsymbol{\beta}_2, \cdots, \boldsymbol{\beta}_{5-1}$ ．如果秩 $r\left(\boldsymbol{\alpha}_1, \boldsymbol{\alpha}_2, \cdots, \boldsymbol{\alpha}_s, \boldsymbol{\beta}_1, \boldsymbol{\beta}_2, \cdots, \boldsymbol{\beta}_{5-1}\right)= r\left(\boldsymbol{\beta}_1, \boldsymbol{\beta}_2, \cdots, \boldsymbol{\beta}_{s-1}\right)$ ，则必有
$\text{A.}$ $\boldsymbol{\alpha}_1, \boldsymbol{\alpha}_2, \cdots, \boldsymbol{\alpha}_s$ 线性相关．
$\text{B.}$ $\boldsymbol{\beta}_1, \boldsymbol{\beta}_2, \cdots, \boldsymbol{\beta}_{5-1}$ 线性相关．
$\text{C.}$ $\boldsymbol{\alpha}_1, \boldsymbol{\alpha}_2, \cdots, \boldsymbol{\alpha}_s$ 线性无关．
$\text{D.}$ $\boldsymbol{\beta}_1, \boldsymbol{\beta}_2, \cdots, \boldsymbol{\beta}_{5-1}$ 线性无关．
$\text{E.}$
$\text{F.}$