请教: Prep1 #37关于代词的指代

Thyrod

37.One report concludes that many schools do not have, nor are they likely to have, enough computers to use them effectively.
这里的them指代什么呢？computers还是schools？前面的they指代schools，那么这里的them只能指代schools，就出现意思上的问题了。
盼高手出来解答一下

口号是勇气

个人理解指代computers     非牛