引言：概述举证责任分配的重要性以及现实的困境，并指出本课题研究的价值和意义。
Introduction: the part overviews of the importance of the allocation of the burden of proof as well as the reality of the plight. It pointed out that the very value and significance of the study.
文学是用语言构筑的艺术世界，文学语言问题长期以来是一个备受文论家关注的问题，也是一个非常具有研究价值的课题。
Literature is the language used to build a world of the arts, the language of the literature problems have long been a literary family concerns, but also a great research value of the subject.
换句话说，概括赖特的生平与其成就是件不太可能完成的任务，但恰恰由于这个原因使得此人成为一项有价值的研究课题。
It is, in other words, impossible to sum up Wright and his accomplishments, which is exactly what makes him so rewarding a subject.
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