Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece
(A)exhibit, which thereby activates
(B)exhibit, in turn an activation of
(C)exhibit, and it will activate
(D)exhibit and thereby activate
(E)exhibit which, as a result, activates
题目分析：A读完意思没有明显错误，先留着。B用an activation，如果这么写就说明逗号前面应该表达的activation的意思，否则无法和后面的activation形成呼应，例如：英吉discover....，a discovery（这样才呼应），不可以用名词，干掉。C用and it，这个it就得和and 前面的主语保持一致了，it应该指的是前面那个project，语义没问题，但是既然activate发起者没变你加个it干什么，多此一举，就例如：英吉不仅杀人而且他防火中的这个他非常多余一样。D就没有犯相同的错误。E中那个as a result没必要，A和D进行比较，A用whichD不用，which指什么？是exhibit还是前面整个句子，歧义大，还是别用了，选D
