同学好~~
1. which 从句是定语从句，修饰 These levels，其中 which 指代 These levels；
2. 这句话的主句是 These levels come from outside activities, teaching activities, and other noise generated inside 主句结束直接跟了 which 引导的非限制性定语从句，所以并没有所谓“指代太远”的问题喔。
这句话具体的句子结构可以参照这里~
http://www.langlib.com/Reading/SentenceAnalysis/ReadingSentence/MDAwLTYtOTQ=
#召唤陪练狮#
These levels come from outside activities that penetrate the classroom structure, from teaching activities, and other noise generated inside, which can be exacerbated by room reverberation 句子中 which can be exacerbated by room reverberation的which指代的是These levels么？这句作为定语从句修饰的是主句？Which指代怎么能这么远呢？这种句子结构能帮忙分析一下么？谢谢~ 😊😊😊����
我有话要说
