求助大N们。Prep07 SC2 第21题

小毅思

21.    (25520-!-item-!-188;#058&002357)

Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

(A) scientists learned how to make a synthetic growth hormone, removing it painstakingly
(B) scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly
(C) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
(D) learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
(E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists


徘徊在C与D之间，看了解释，但不清楚为什么D项说it指代a synthetic growth hormone,不符合逻辑意思。

xueluanfei

同问牛人，这句话到底说什么意思啊？选了D感觉很正确啊。。

yiqing2012

a synthetic growth hormone是指人工合成的生长激素，科学家要提取的是自然的，不是人工合成的~

DUKB24

同问牛人，这句话到底说什么意思啊？选了D感觉很正确啊。。

-- by 会员 xueluanfei (2012/12/1 18:20:44)

问题出在了it的精确指代，指代了合成的东西


带回进去是不符合逻辑的

lanyu1993

DUKB24 发表于 2012-12-2 02:15
同问牛人，这句话到底说什么意思啊？选了D感觉很正确啊。。-- by 会员 xueluanfei (2012/12/1 18:20:44) ...

C 和 D 怎么翻译呢 为什么不符合逻辑