Terms of the contract maintenance period is to repair and maintenance costs of the burden.
合同中的维修条款是说明维修期限和维修费用的负担问题。
Where there is a dispute about whether the contract is performed, the party concerned responsible for the performance thereof shall bear the burden of proof.
对合同是否履行发生争议的，由负有履行义务的当事人承担举证责任。
In the article, the author gives the definition of the law of burden of proof, and does focus on the burden of proof in the contract law.
本文运用作者自己提出的证明责任法概念，对现行合同法领域的证明责任问题进行研究。
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