855 Section 02 Q14

14.   Although one link in the chain was demonstrated to be weak, but not sufficiently so to require the recall of the automobile.

(A) demonstrated to be weak, but not sufficiently so to require

(B) demonstrated as weak, but it was not sufficiently so that it required

(C) demonstrably weak, but not sufficiently so to require

(D) demonstrably weak, it was not so weak as to require（D）

(E) demonstrably weak, it was not weak enough that it required

这一题为什么选D啊？只靠一个so...as to可以把答案选出来，可是我总是觉得demonstrably weak怪怪的，谁能解释一下，谢谢了。

这句话我理解是:

虽然整个系统里的某个部位的确不耐用,但也不至于要回收整个汽车.

althought本来是连词，后面不能再加连词but

所以 A B C错

E有两个it，两个it 指代对象不同，所以错（一个句子里面相同的代词只能指代一个东东）

stevegt, 你回答了我好多问题啊，MS非常NN啊，也许是我的问题太弱智了，哈哈。

anyway, a lot of thanks.