| 摘要 |
PROBLEM TO BE SOLVED: To provide a book-type flash card instantaneous presentation implement, which is capable of producing the effects of promoting bloodstream in the brain, activating the brain cells, enhancing memory ability, promoting heath, realizing desires, etc., by the instantaneous visual stimuli of characters, pictures, etc., and to provide a method of using for the same. SOLUTION: A book outside a front cover (3) of a book (1) is opened with a window part (2) and an inside frame, having a card which houses back part (5), a cover which houses a V-shaped part (6) and a card housing intermediate wall (7) is mounted between the book outside the front cover (3) and a book outside back cover (4), by which the instantaneous presentation of the flash card is made possible.
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