or 与 and 的问题讨论!

the commission has directed advertisers to restrict the use of the word "natural" to foods that do not contain color or flavor additives, chemical preservatives, or nothing that has been synthesized.

C and nothing that is

D or anything that has been

答案

C  The use of nothing creates a double negative

     and shoud be or

D CORRECT

困惑

C选项我知道用nothing 不对,但我不理解为什么用or

请大家帮帮我,谢谢了

that do not contain color or flavor additives, chemical preservatives, or nothing that has been synthesized.

否定，用or