| 摘要 |
PURPOSE: An error file is provided which is more convenient and saves time so that an examinee frequently uses it as an appropriate collection of problems to help increase examination results. CONSTITUTION: The error file comprises a ruler, an error file case, error file contents, and double-sided tapes adhered onto the error file contents, wherein paper sheets are overlappingly adhered onto a marked part of the file to maintain an equal thickness since it is inconvenient to carry the file, and the appearance of the file is not good as only an adhesion repeated part is thickened when adhering problem paper sheets of a collection of problems or a trial examination to the file, an outer tape should be peeled off when using a tape for adhering problem paper sheets of the trial examination or the collection of problems, a dotted line marked part inside a circle is torn off in accordance with their lengths as vertical lengths of the cut out paper sheets are different each other depending on problems, that is, the dotted line is not cut out by a knife as a tear-off line, but torn off in accordance with vertical length of a problem paper sheet, labels having an index function on which subject names or trial examination names are written are formed at the right side of the problem paper sheets to find required problems as quickly as possible, a case of the file is made of plastics while a part marked as (1) is made of steel, a problem exclusive ruler for cutting problems paper sheets is formed, a projected part of the problem exclusive ruler is inserted into the part marked as (1) so that the ruler can be carried along with the error file to cut out the problem paper sheets or the problems of the collection of problems as fast as possible, a part marked as (2) is inserted into the part marked as (1), the part marked as (1) is rings generally used in a diary, dates when problems are solved or numbers are written on the part marked as (2), and mathematical formulae or explanations that a user wants to record separately are arranged and recorded on a part marked as (3).
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