求教各位大牛OG12 No.23 的语法结构

micro418 · 发表于 2010-3-22 01:44:13

In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is lined with lead around the perimeter, thereby improving stability in flight an resulting in longer throws.
(A)In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is
(B)According to a previous design, the weight of the discus used in track competition was concentrated in a metal center, but now it is
(C)Once designed with its weight concentrated in a metal center, the discus used in track competition is now
(D)The discus used in track competition, once designed with its weight concentrated in a metal center, but now
(E)The discus used in track competition was once designed having its weight concentrated in a metal center and now
该题目正确答案很容易判断。在下就是想问一下，E选项里面的 “The discus used in track competition was once designed having its weight concentrated in a metal center ” 中having的用法对不对，还请大牛指导一下这个结构是怎么回事！谢谢！

蜕_舞 · 发表于 2010-4-5 20:28:14

看到别的地方的大牛写的:having的用法是错的，

design something to do something
be designed for somebody/something
be designed as something

本贴相关题目 OG-12-SC-23 | GMATPrep-2008E2-SC-160 (JDBO)

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求教各位大牛OG12 No.23 的语法结构

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