1. Building large new hospitals in the bistate area would constitute a wasteful use of resources, on the basis of avoidance of duplicated facilities alone.

(A) on the basis of avoidance of duplicated facilities alone

(B) on the grounds of avoiding duplicated facilities alone

(C) solely in that duplicated facilities should be avoided

(D) while the duplication of facilities should be avoided（E）

(E) if only because the duplication of facilities should be avoided

请问这里的if only because作何解？

我的理解，if only这里是副词，修饰because，意思还是“只要”。

这句的主干是Building large new hospitals in the bistate area would constitute

a wasteful use of resources, because the duplication of facilities should be

avoided。

if only起了个加强语气的作用。

1,白勇的解释是：唯一的原因是......

2,longman: if only: b) used to give a reason for something, although you think it is not a good one example: Media studies is regarded as a more exciting subject, if only because it's new.

Hopefully this 2 explanations will be helpful. I am personally inclined to the explanation of longman.

 请问朋友们，是怎么想到要选E的？

我选了A。你们做这题的思路是什么？

谢谢先了。

duplicated facilities不能avoided

只有duplication of facilities才能avoided

所以，只能在D和E中间看，D肯定不对，只有E，虽然看上去有点怪。

got it?