南京大学革命烈士纪念碑后三块写有革命烈士介绍文字的石碑,有两块已经碎裂,质量如此?!

http://pan.xici.com/group5/M02/A8/16/rBABqFho-AiEF-JRAAAAAEErMtc543.jpg/1010
http://pan.xici.com/group5/M02/A8/1C/rBABqVho-AmEdAPHAAAAADToJRs306.jpg/1010
http://pan.xici.com/group5/M02/A8/1C/rBABqVho-AmEZJVRAAAAAJahhvU887.jpg/1010
http://pan.xici.com/group5/M02/A8/16/rBABqFho-AmEF2kyAAAAAIhAsBk977.jpg/1010
http://pan.xici.com/group5/M02/A8/16/rBABqFho-AmEAI_HAAAAAEDorDU299.jpg/1010
http://pan.xici.com/group5/M02/A8/1C/rBABqVho-AqEIcxNAAAAAGMLYqA405.jpg/1010
http://pan.xici.com/group5/M02/A8/16/rBABqFho-AqEJCmiAAAAALcIv7s114.jpg/1010
http://pan.xici.com/group5/M02/A8/1C/rBABqVho-AqEDWayAAAAAGEKN-Y894.jpg/1010
此言即是,不知有关部门有何感想?
还是人为所致 ?