答案：A
$\begin{array}{rcl}
2(1-x)+5 & \ge & 17 \\
2-2x+5 & \ge & 17 \\
-2x & \ge & 10 \\
x & \le & -5
\end{array}$
$\begin{array}{rcl}
2(1-x)+5 & \ge & 17 \\
2-2x+5 & \ge & 17 \\
-2x & \ge & 10 \\
x & \le & -5
\end{array}$
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