It is a smart library software, a comprehensive professional learning library for water wells, and an online preparation of vocational examination qualifications for each knowledge point. The water examination library is a mobile phone-end application for online examinations and brushes, which provides chapters, subject-type exercises, random exercises, whole-volume simulations, mischaracterizations, tracking of progress, collections and notes, and allows users to perform online exercises and simulations, including the legal career qualification examination (judicial examination) 2008-2019, and the analysis of answers. Software functions support lot import of topics: import of word test documents with one key to save the complexity of ad hoc input; support for various subject types: selection, emptying, judgement, question and answer, material (including sub-topics); flexible grouping: support for random selection, difficulty selection, etc.; multiple choreography: sequential exerci...