有关as引导句子问题

问题描述:

有关as引导句子问题
(As)computers become cheap and widespread in schools and colleges, so the job of the teacher will change from a giver of information to an adviser of students on how to use the new technology to find and handle information. 为啥前面AS 引导句子后,后面的句子能用SO ,AS 和so 在这里不都是连词吗?我觉得应该把so去掉
我是英语专业的大二的,可是我们精读书上就是这么写的,是一道练习题,答案就是as

前面As可以翻译成随着.so是多余的,不用.