84. 

The Nobel Prize in chemistry was awarded to three scientists for their discovery that plastic can be made electrically conductive--an advance that has led to improvements in film, television screens, and windows.

(A) that plastic can be made electrically conductive--an advance that has led

(B) that plastic can be made electrically conductive--this advance leading

(C) that plastic can be made to be electrically conductive, and this advance led

(D) of plastic's ability to be made electrically conductive, with this advance leading

(E) of plastic being able to be made electrically conductive--an advance that has led

B有什么错？我实在没看出来。谢谢

has led是正确的时态

an advance是以同位语出现,不应该用this

即使一定要用this advance,也不能说this advance leading,结构不对,缺少成分

我想有时语法还是要借助一下逻辑。Scientists获奖是因为他们的发明作出了贡献，于是应当使用完成时，B体现不出已经作用的效果.

是啊。深刻领悟。

谢谢

不懂为什么this advance leading to…缺少动词呢?

先不管this的错误，同位语不是名词就可以了吗？

this advance做同位语leading to做定语修饰advance啊

怎么说少了动词呢?

正确答案

an advance that has led 不也是一个名词而已吗?

是不是我哪里想错了什么?

有没有人指点一下啊

我发的帖都没人理啊 

是问的问题都太蠢了吗

是问的问题都太蠢了吗

是问的问题都太蠢了吗

谢谢~~

我再体会体会