A user interactive question-answer method and system over the Internet are disclosed. The system comprises: a pattern database for storing a question pattern and/or an answer pattern to be selected to use; an asking module used for the user to select the question pattern to ask; a replying module used for the user to employ the answer pattern to reply. The answer pattern can be selected or created manually by the user, or the answer pattern corresponding to the question pattern can be found automatically by the replying module from the pattern database.
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