A:变压器的铁芯
B:磁带录音机的磁带
C:电脑软盘
D:扬声器用的磁铁
In 1154, HenryⅡ became ____ (国王) of England.
—Excuse me, sir, visiting hours are over. You leave.
—Pardon me, nurse. I didn't hear the bell.