疯狂求助 ：OG-156，谢谢。

esprit

156. Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much as maintaining paved roads.
(A) dirt roads cost twice as much as maintaining paved roads
(B) dirt roads cost twice as much to maintain as paved roads do
(C) maintaining dirt roads costs twice as much as paved roads do
(D) maintaining dirt roads costs twice as much as it does for paved roads
(E) to maintain dirt roads costs twice as much as for paved roads

答案选B,我的问题是og解释中有这么一句话： Choice A incorrectly shifts the meaning by comparing the cost of dirt roads with the cost of maintaining paved roads.
我的印象里，如果原文--我指包含A选项的原文--如果没有什么逻辑上的错误的时候，那么答案就应该以带A选项的原文为基准。

这道题，我觉得原文没有什么逻辑错误，所以我就是想比较dirt roads cost和the cost of maintaining paved roads，所以我选了A,而B呢，我当时认为是改变了原文意思，干掉了。

请问，这种错误如何避免？

esprit谢谢大家~~~

andrew_li

In Choice A, the comparison is between dirt roads and maintaining paved roads, which is incorrect.