| 摘要 |
<p>The invention relates to a correction kit enabling very fast detection of errors, the test comprising a batch of questions with different response versions wherefrom the correct ones are selected. The kit comprises a box (1) with a bulb (a) therein and a transparent lid (b) on top, a card (2) being laid on the lid, said card containing the correct response versions signalled as squares with engrossed sides (c) which the light of the bulb (a) projects onto the test blank (3) laid over the card (2),said blank comprising hatched squares (f) representing the correct response versions; the final image is a card (4) with some hatched squares (g) confined by shade frames for the correct responses and some framed squares (h) white at the interior where correction will be made.</p> |
