如题所述
What documents should I provide (for you)?
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第1个回答 2011-06-06
2楼的答案中，把which改为what就对了
第2个回答 2011-06-06
Which files need I provide?
第3个回答 2011-06-06
which documents do I need to offer?
第4个回答 2011-06-06
which files do I need to provide ?
