求助~在线等！语法题

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OG Verbal 13th蓝皮书 P248  SC 23
Consumers may not think of household cleaning products to be hazardous substances, but many of them can be harmful to health, especially if they are unsed improperly.

A. Consumers may not think of household cleaning products to be
B. Consumers may not think of household cleaning products being
C. A consumer may not think of their household cleaning products being
D. A consumer may not think of their household cleaning products as
E.Household cleaning products may not be thought of, by consumers, as

我想问一下D和E
D是正确答案
但是选D 不会存在指代不明么 many of them 中的them 为什么不可以指代 hazardous substances，一定是指代products呢？
2. E 为什么就是wordy and ackward了？
是因为but 是 conj 所以要求连接的成分需要平行么，我的意思是说若but前的句子是主动语态 那么but 后的那个句子也必须是主动而不能是被动么？而且在E选项中两个句子的主语都是一致的不是更加清晰么？

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holy0401 发表于 2014-3-3 22:43
1 many修饰可数名词~substances不可数
2 主动由于被动（这点我也不确定，但是总的说主动优于被动）

谢谢啊 ~~你是第一个鸟我的人  热泪盈眶！

holy0401

1 many修饰可数名词~substances不可数
2 主动由于被动（这点我也不确定，但是总的说主动优于被动）

仅为个人观点啊

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人.........

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..............人 ..........

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肿么还是没人

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有没有人啊