2006-II-03
答案:A
$\begin{array}{rcl}
\dfrac{1}{x+1} – \dfrac
… Read $\begin{array}{rcl}
\dfrac{1}{x+1} – \dfrac
$\begin{array}{rlllllll}
$\begin{array}{cl}
& \dfrac{6}{n-6} – \
$\begin{array}{rcl}
\text{第
$\begin{array}{cl}
& \dfrac{2}{5-4x}-\dfrac
在該三個數式中,