请教OG-100

vikkigmat

请教: OG-100
100. A compelling optical illusion called the illusion of velocity and size makes objects appear to be moving more slowly the larger the objects are. Therefore, a motorist's estimate of the time available for crossing a highway with a small car approaching is bound to be lower  than that it would be with a large truck approaching.

the conclusin above would be more properly drawn if it were made clear that the:
A truck's speed is assumed to be lower that the car's
B truck's speed is assumed to be the same as the car's
C truck's speed is assumed to be higher than the car's
D.mostoris's estimate of time available is assumed to be more accurate with cars approaching than with trucks approaching

E.motorist's estimate of time available is assumed to be more accurate with trucks approaching than with cars approaching

求助：知道答案，但是不知道如何排除D，E？谢谢。

welkin

DE是无关选项，我觉得是这样的：原文的比较对象是现实中car与truck速度的差别 与 幻觉中car与truck速度的差别 比较， 而DE中比较对象是 car在现实中与幻觉中速度的差别 与 truck现实中与幻觉中速度的差别 比较， 两种比较之间谈的不是一回事

yangxiaogang

why C is the best ??

KATIEUS

KATIEUS

写的一大篇又丢了，没力气再打了。

总之本题比较的就是估计的时间，而非现实与估计的差。

详见11OG