2009-II-01
答案:B
$\begin{array}{cl}
& 2^n \cdot 3^n \\
= & (2
… Read $\begin{array}{cl}
& 2^n \cdot 3^n \\
= & (2
$\begin{array}{rc
$\left\{ \begin{a
$\begin{array}{cl}
= & 30~000\times (1 + 5
$\begin{array}{cl}
= & 1 : 5~000 \
設 $\theta$ 為由 $P$ 測 $Q$ 的俯角。因為 $AP//QC$,所以 $\theta = 40^
$\begin{array}{cl}
= & 48 \div 4 \\
=
$\begin{ar
$\begin{array}{c|c|c|c}
& \text{球體 }A &