求教OG12-Q82，一道support的问题

gonghao

82.   A sudden increase in the production of elephant ivory artifacts on the Mediterranean coast of North Africa occurred in the tenth century. Historians explain this increase as the result of an area opening up as a new source of ivory and argue on this basis that the important medieval trade between North Africa and East Africa began at this period.
Each of the following, if true, provides some support for the historians' account described above EXCEPT:
(A)    In East Africa gold coins from Mediterranean North Africa have been found at a tenth-century
site but at no earlier sites.
(B)    The many surviving letters of pre-tenth-century North African merchants include no mention of business transactions involving East Africa.
(C)    Excavations in East Africa reveal a tenth-century change in architectural style to reflect North
African patterns.
(D)    Documents from Mediterranean Europe and North Africa that date back earlier than the tenth
century show knowledge of East African animals.
(E)    East African carvings in a style characteristic of the tenth century depict seagoing vessels very
different from those used by local sailors but of a type common in the Mediterranean.

正确答案是D。我觉得C、D都不可以support呀~这道题应该关注的是trade。OG上对C的解释是说因为贸易，所以贸易的交流才导致了建筑风格的影响，那这样解释的话D岂不是也可以解释成因为有了trade，所以才使东非对北非的动物有了认识？
总感觉C像是对结果多往下推了一步才得出support的！纠结了~

谢谢大家~

llqq1220

D是相对最弱的，这是可以比出来的。你可以这么试着问问自己，A采用B的建筑模式与A知道B的动物比起来，那个相对更容易实现。明显是后者，也就意味着D证明AB之间有贸易是最弱的。做题不要无谓的钻牛角尖，绝对性的思维能帮你起步，相对性的思维能帮助你做得更好。

gonghao

我后来想想也发现自己当时好像钻进去了~谢谢LS的回答！

lshlccER

而且D中还提到欧洲这一超级无关因素。

gonghao

真的哦~~真是太不仔细了！当时怎么就想不明白~谢谢LS的解答~

chaseconsult

D的关键在于时间不对吧。。

rainnight

OG上的解释：Thus, an option that identifies some connection between

North and East Africa
which predates the tenth century would not support but rather undermine

the historians’
account。
其实本题的考点应该在于，如果证明NA和EA在10世纪以前就有贸易往来，那么就无

法证明“trade between North Africa and East Africa began at this period

(10 century)"。这是对应的D选项。
我不明白的是B选项，“The many surviving letters of pre-tenth-century

North African merchants include no mention of business transactions

involving East Africa." 这个选项并没有support结论的作用；但是和D相比，它

至少不会weaken the conclusion。