112. Domestic automobile manufacturers have invested millions of dollars into research to develop cars more gasoline-efficient even than presently on the road.

(A) into research to develop cars more gasoline-efficient even than presently on the road

(B) into research for developing even more gasoline-efficient cars on the road than at present

(C) for research for cars to be developed that are more gasoline-efficient even than presently the road

(D) in research to develop cars even more gasoline-efficient than those at present on the road

in research for developing cars that are even more gasoline-efficient than presently on the road

答案选D

问题1：但我觉得D 改变了原句even的位置。原句even than presently on the road 甚至比现在的车还好，强调现在的车。D中even more gasoline-efficient 强调更省油

问题2： lzm语法中说than 和 as 后有时可省略主语（参见og187)。不知112中A选项能不能算是这种省略形式

OG187. In one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862, four times as many Americans were killed as would later be killed on the beaches of Normandy during D-Day.

我的感觉是做题更重要的是把握ETS要考什么而不是一些他自己都忽略的东东。even more的用法感觉更加常见，而且从意思上面理解也更加合理。

其实把握住这道题的主要考点就很容易做出答案

1 invest in

2 表目的用infinite form to develop (我的感觉出现不定式在GMAT中的选项总是对的，可能有更多的主动含义吧？）