{"id":"m28-2019-styczen-egzamin-zawodowy-pisemny/zad/14","paper_id":"m28-2019-styczen-egzamin-zawodowy-pisemny","number":"14","points":null,"ptype":"closed","subject":"m28","category":"egzamin-zawodowy","year":2019,"month":"styczen","level":null,"text":"Zadanie 14.\nSztucznym ziarnem ściernym jest\nA. kwarc.\nB.\ndiament.\nC.\nkrzemień.\nD. elektrokorund.","answer":"D","answer_text":"D\n34\nD","solution":null,"image":"img/m28-2019-styczen-egzamin-zawodowy-pisemny/zad-14.webp","solution_image":null,"topics":null,"page_from":4,"source":"ocr","answer_source":"ocr","answer_text_source":"ocr","solution_source":null,"text_source":"ocr","source_label":"M28 · Egzamin zawodowy · styczeń 2019","subject_label":"m28","category_label":"Egzamin zawodowy","text_html":"<p>Zadanie 14.<br>Sztucznym ziarnem ściernym jest<br>A. kwarc.<br>B.<br>diament.<br>C.<br>krzemień.<br>D. elektrokorund.</p>","answer_text_html":"<p>D<br>34<br>D</p>","solutions":[]}