小问题，OG12-SC-23 C选项，BUT消失了！！

pandah0522

23. In aprevious design, the weight of the discus used in track competition isconcentrated in a metal center, but now it is linedwith lead around the perimeter, thereby improving stability in flight and resultingin longer throws.

(A) In a previousdesign, the weight of the discus used in track competition is concentrated in a metal center, but now it is

(B) According to a previousdesign, the weight of the discus used in track competition was concentrated in a metal center, but now it is

(C) Once designed withits weight concentrated in a metal center, the discus used in trackcompetition is now

(D) The discus used intrack competition, once designed with its weight concentrated in a metal center,but now

(E) The discus used intrack competition was once designed having its weight concentrated in a metal center and now

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一个小问题，我记得好像不能改变原来句子的转折关系啊？虽然说好像看上去也挺通顺的，但为什么BUT去掉了却是对的呢？还是说其他的句子都有2句话所以需要一个连词，而C不需要所以就不加了呢？

abjure

(C) Once designed withits weight concentrated in a metal center,  这个部分是作为modifer 去修饰 the discus 的。

建议楼主看看 manhatton 的 modifer 这一章。

332

“一个小问题，我记得好像不能改变原来句子的转折关系啊？”

谁说不可以改变句子的转则关系。

只要意思说的通，原句错也是很正常的。

而且once 和 now 都对立了。