OG34_一个没有被问过的问题

各位老师和领导！我已经查过以前的帖子，没有结果，故有一问！

34. A report by the American Academy for the Advance­ment of Science has concluded that much of the currently uncontrolled dioxins to which North Ameri­cans are exposed comes from the incineration of wastes.
    

(A)
   much of the currently uncontrolled dioxins to which North Americans are exposed comes
    

(B)
   much of the currently uncontrolled dioxins that North Americans are exposed to come
    

(C)
   much of the dioxins that are currently uncon­trolled and that North Americans are exposed to comes
    

(D)
   many of the dioxins that are currently uncontrolled and North Americans are exposed to
    come

(E)
   many of the currently uncontrolled dioxins to
    which North Americans are exposed come
    

Choices A, B, and C are flawed because
     the countable noun dioxins should be modified by many rather than much, which is used with uncountable nouns such as "work" and "happi­ness." In addition, both A and C incorrectly use the singular verb comes with the plural noun dioxins. Choices C and D are needlessly wordy, and D requires that before North Americans, to be grammatically complete. Choice E, the best answer, is both grammatically correct and concise.

dioxins: 凭什么就是countable。dioxin不是二恶英吗？一个化学材料的名字竟然可以countable。我的天，为什么！不同的dioxin！！！！

看到这道题OG的解释，我突然想起了古龙的小说中的内容：Waterteller瞪着OG的解释,按在键盘上的手渐渐发抖,突然低下头,弯下腰,猛然地呕吐。

望各位牛牛看在江湖道义的面儿上，救我一命！

Gmat里有S就是复数,没S就不是复数,当然像people这些词除外。

果然GMAT就是这么无赖吗？

我是不信的！他这么做，必然有这么做的理由？这个理由是什么？还望大虾们指点？

如血的残阳下有两个人，一个是waterteller，另一个是Gmat。Gmat说：你以为我是不讲理的吗？只是我的理你还不明白！Waterteller一声叹息，于是晕了过去！

NN们出手一救吧！

dioxin [uncountable and countable]
a very poisonous chemical used in industry and farming

---------Longman Dictionary.

果然都行：

请看No.6:

In virtually all types of tissue in every animal species, dioxin induces the production of enzymes......

这里的dioxin单独存在，也就是说只能是个不可数名词。

伟大的GMAT，您确实是我大爷！

我在想，如果GMAT就出这种题，我们谁也不用读MBA了。挺好

有点发牢骚了，对不起了！

别生气，请注意题中，是dioxins加了s 的

已经提示里这里是复数了。