人们在平常的经济活动中,为避免纠纷或有效地解决纠纷,会注意立下字据为证。但如果立据不当,也会引发纷争,从而使权利人不能有效地保护自己的利益。本文所举几例,可引以为鉴。字据空白留隐患牛志东向严婧借现金1万元,说好1年内还清,并向严出具了借条。几个月后,牛偿还3000元,严 People in the ordinary economic activities, to avoid disputes or effectively resolve disputes, will pay attention to the evidence as evidenced. However, if the basis is not properly set, it will also lead to disputes, so that the rights holders can not effectively protect their own interests. Several examples cited in this article can be drawn on for reference. According to the blank left hidden cattle Zhidong to Yan Jing borrowed 10,000 yuan in cash, said a good year to pay off, and to strict issued by IOU. A few months later, the cattle repay 3,000 yuan, strict