关于南北极地区极夜持续时间的叙述正确的是[ ]

A．北极极夜持续的天数多于南极地区

B．北极地区极夜的持续天数与南极地区相等

C．北极极夜持续的天数少于南极地区

D．北极地区极夜的持续天数比南极地区有时多有时少

You must have ________ Beyonce, and she is a very famous singer who sang a song for the 77th Annual Academy Awards (第77届奥斯卡金像奖颁奖典礼).[ ]

A. heard from

B. heard

C. heard on

D. heard about