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 exercise, random exercise, special exercise, mist rework, simulations, etc.; faulty questions, collections, notes, history records, and recording of the points of practice. Scripts: free-of-mass tests, nowhere to be practiced simulation: simulation of examination scenes, improvement of written examination rates discovery: access to examination information, lectures, video on the online view platform for legal examination preparatory: brushing, simulation, live-on-the-stop processing of software features 1. Chapter exercise following the chapter of the teaching materials and detailed analysis of the questions in the library in accordance with the teaching materials and relevant laws and regulations. 2. Select the exact subject of the annual examination, rate the system automatically, update quickly and upgrade free of charge. Pre-test guesses, based on the question-and-issue pattern of the calendar year examination and the popular test, can be used both to test the perception of the examination subject and to assess the ability to respond to it. 4. Practice records. Clouds keep collection tags, error logs, practice history, easy access, and more conducive to revisiting knowledge blind spots and contributing to points. To record and analyze your learning trajectory, help you evaluate the examination rate。