It contains no A and B还是It contains no A or

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It contains no A and B还是It contains no A or
我想表示的是既不包含A也不包含B,就是都不包含的意思

It contains no A and B 还是It contains no A or
回答：
yusiyuxi 同学：
It contains no A or B.是正确的!
说明：
1）
若“想表示：既不包含A也不包含B,就是都不包含的意思”,即表达“既不……也不……；
”时,英语可用下列表达方法：
(a) neither...nor...；
(b) no...or...
你的上述句子既可写为：It contains no A or B.还可以写为：It contains neither A nor B.
2）
否定句里的并列连词一般不能用and,要用or；
例如：
He has no son or daughter.
He has no son and no daughter.
这两句是等同的,and 在这里是并列关系,前后都有no 连接；只有一个no的时候须用or.
3）neither...nor...其含义是否定的,可连接任意两个并列的成份.
例如：She likes neither butter nor cheese.她既不喜欢黄油也不喜欢乳酪.
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