长期以来，由于种种原因，证人出庭作证在我国刑事诉讼中一直困难重重，刑事案件审理过程中，证人出庭作证的比例极少。大多数庭审均由审判人员宣读证人证言，而控辩双方也无法就证言进行直接的言辞质辩。显然，这种情形与修正后的刑诉法所要求的庭审功能有着较大的差距，必须 For a variety of reasons, it has been very difficult for witnesses to testify in court during the criminal proceedings in our country. In the course of hearing criminal cases, there is a very small proportion of witnesses appearing in court. Most of the trials were witness testimony read by trial staff, and both prosecutors and defense can not make a direct argument on the testimony. Obviously, there is a big gap between this kind of situation and the trial function required by the revised Criminal Procedure Law, which must