核心问题
（A）I saw her today.
(B) I have seen her today.
这两个句子哪个是正确的？
词典解答
上面的两个句子都是正确的。today 与 already, before, recently 等副词一样,既可与过去时连用,也可与现在完成时连用。不言而喻,today 也可以与一般现在时和一般将来时连用。
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He's in a bad humor today. (RCD) 他今天心情不好。
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Do you think she will arrive today? (Chambers) 你认为她今天会到达吗？