SC测验题39 关于but和and作为同一层面连词的困惑

yuha1111

According to scholars, the earliest writing was probably not a direct rendering of speech, but was more likely to begin as a separate and distinct symbolic system of communication, and only later merged with spoken language.
(A) was more likely to begin as
(B) more than likely began as
(C) more than likely beginning from
(D) it was more than likely begun from
(E) it was more likely that it began

答案 B


想问个弱智的问题，像题目中所用的结构，（sb do sth，but do sth， and do sth）   and 和but同为连词，且连接成分处于同一层面 ，不像那种but do （sth and sth）  两者处于不同层面。这个实在难以理解，印象中一个句子，在同一层面的连词只能是一个，经常见的情况是，sb do sth，do sth，and do sth。虽然这里不用but无法表达转折之意，但应该有其他方式。  或者所，这种结构（（sb do sth，but do sth， and do sth） 是允许存在的。 语言可能表述的不到位，还请各位G友帮忙解答。。。