GWD，天山语法求助，谢谢啦

luyiqing

T-9-Q27. 大全987-606
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

A.    that produce and make it understandable has revealed great complexity instead of underlying simplicity
B.    of producing and understanding it have revealed not underlying simplicity but great complexity
C.    by which it is produced and understood has revealed not underlying simplicity but great complexity
D.    by which it is produced and understood have revealed great complexity rather than underlying simplicity
E.    by which one produces and understands it have revealed great complexity instead of underlying simplicity
答案选A，选C为什么不对啊？

Bourne_NY

句子的意思是那些研究不但没有将问题简化，反而揭示了复杂的东西，instead of 结构最合适。
如果想用C的句式，至少也得是has not underlied simplicity but revealed great complexity。

luyiqing

哦，好像明白了，当初我是觉得underlying是形容词来着，然后跟great正好对称