The whole range of second grade junior high school science, 322 questions of choice.
It is a full-fledged learning app by the author who offers questions to use for classes, exams, etc., as well as learning schools and junior high schools.
It is a content that contains all the required items and important items of each unit, and is centered on the basic problems that are perfect for textbooks, so it can be performed in a short time and is ideal for checking before regular testing.
Furthermore, the commentary on all issues can lead to a better understanding.
In addition, it is helpful in finding weak points, because the ○ and score of each problem are recorded in the history.