4. The method of claim 3 further comprising: recognizing the second voice using a voice recognition technology to obtain an answer corresponding to the second voice; and determining whether the answer conforms to the specific answer.
4. The method of claim 3 further comprising: recognizing the second voice using a voice recognition technology to obtain an answer corresponding to the second voice; and determining whether the answer conforms to the specific answer. 5. The method of claim 4 further comprising recording the second voice.