| 摘要 |
PURPOSE: A workbook for learning a language is provided to help a user to efficiently learn vocabulary by applying an optimum learning effect through a first learning area, a second leaning area, and a third leaning area. CONSTITUTION: In a workbook for learning a language, a learning area has n problems and 2m first learning areas(110) have a space for an answer sheet corresponding to each problem. M second learning(120) areas have two problem included in the first learning area and have a space for an answer sheet corresponding to each problems. A third learning area has the all problems which are included in the second learning area and has a space for an answer sheet corresponding to each problem.
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