摘文的阅读及取舍标准根据各种索引的介绍及对其熟练的运用,我们往往可由一个课题、项目及所需查阅的内容从索引中查得几个、几十个甚至几百个文摘号,按照这些文摘号即可去查阅C.A.的摘文,进行初步阅读。但必须指出,摘文的功用仅在于介绍原文的梗概,因此在阅读C.A.摘文时,往往要根据课题的目的要求来决定资料的取舍及是否需要阅读原文。这是因为由摘文所得的仅为一概貌,还不能完全作为依据,再加上文摘摘录者的看法与查阅者的要求未必完全一致,查阅者可能认为是重要的关键内容,未必尽为摘录者摘入,加以索引也未必就十分完美,因而通 Essay reading and selection criteria According to various index introduction and its skilled use, we often can be a subject, project and the required access to the contents of the index found in a few, dozens or even hundreds of abstract numbers , According to these abstract numbers can go to CA’s essay for a preliminary reading. However, it must be pointed out that the function of the abstract is only to introduce the synopsis of the original text. Therefore, when reading the C.A. abstract, it is often necessary to decide on the choice of materials and whether or not the original text needs to be read according to the purpose of the subject. This is because the abstract obtained by the extract is only a profile, can not be completely as a basis, combined with excerpts of the views of viewers and request is not necessarily exactly the same, the searcher may think it is an important key content may not be exhaustive Into the index, it may not be perfect, so through