大全987-987答案明显有错。

1.        With cloning technology, scientists are approaching what has long been the ultimate goal of modern husbandry: achieving a consistency of quality and production in farm animals as once thought to be limited to manufactured goods.

(A) achieving a consistency of quality and production in farm animals as once thought to be

(B) achieving farm animals with a consistency of quality and production as were once thought of as

(C) achieving in farm animals a consistency of quality and production that was once thought to be

(D) achievement of farm animals whose consistency of quality and production are the same as what were once thought to be

(E) achievement of farm animals at a consistency of quality and production once thought of as

正确选项是c，可是c选项在冒号之后竟然没有谓语动词。

冒号解释the goal of modern husbandary,因此用了一个名词性结构来解释这个名词,所以没有错