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DEVICE FOR CHECKING KNOWLEDGE LEVELS OF STUDENTS
DEVICE FOR CHECKING KNOWLEDGE LEVELS OF STUDENTS
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机译:检查学生知识水平的设备
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摘要
1.device for the control of knowledge учащхся containing the front panel in the form of a disk with отверсти ми дл visual registration of the correctness of the answers below it дешифраторы and прогр
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