Electric magnets are used in steel works to ________. A. lift heavy weights up to ten tons B. test the steel for strength C. heat the molten steel D. boil a jug of waterĐoạn văn62/95Electric magnets are used in steel works to ________.lift heavy weights up to ten tons test the steel for strengthheat the molten steel boil a jug of waterGiải thíchChọn đáp án A