天山 9-27 链接也不对,重贴

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（A）

(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

先问个问题,为什么我的上面写的是大全987-606? 我怎么也找不到链接,请版主指点迷津,谢谢.

还有这道题太乱了,主语到底是reserch还是reserch and the processes?为什么答案是A? THAT明显修饰the processes.彻底糊涂了.请各位指点.

没人问这道题麽?