今年2月间,一份《关于宁泽涛返回海军队训练的函》(见图1)在网上激起了千层浪。引发热议的,不仅有宁泽涛被国家游泳队开除事件,还有这则公函的真伪。有网友指出该函中存在诸多疑点,认为此文件系伪造。关于该公函,网友们列举的错误主要有以下几条:1.下行文不应该用函。2.“海军队”应写全称。3.文种不对,应该是处理决定。4.文件落款处只有时间(“时间”指成文日 In February this year, a “letter about Ning Zentao’s return to the training of the Navy” (see Figure 1) stirred up a wave of waves on the Internet. Not only has Ning Zetao been expelled by the national swimming team, but also the authenticity of this letter. There are netizens pointed out that there are many doubts in the letter, that this document is forged. About the official letter, netizens cited the errors are the following: 1. The next article should not be used letter. 2. “naval team ” should write the full name. 3. Wording wrong, it should be the decision to deal with. 4. There is only time at the end of the document ( “time ” means written day