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题库 / Prep2007E2-SC-140
By offering lower prices and a menu of personal communications options, such as caller identification and voice mail, the new telecommunications company has not only captured customers from other phone companies but also forced them to offer competitive prices.
has not only captured customers from other phone companies but also forced them
has not only captured customers from other phone companies, but it also forced them
has not only captured customers from other phone companies but also forced these companies
not only has captured customers from other phone companies but also these companies have been forced
not only captured customers from other phone companies, but it also has forced them
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
A：them作为代词指代不清。在but句中，充当objective与前面的customers平行。不符合ron的可接受pronoun ambiguity的条件。
B：不符合平行结构
D：不符合平行结构
E：不符合平行结构
剩余平行问题
AC选项比较，A中them指代不明确；C很优