|
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
----------------------------------------------
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？ | 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2012-8-9 19:21:10
收藏
收藏
