题目

用半径为10cm，圆心角为216°的扇形作一个圆锥的侧面，这个圆锥的高是     cm。 答案：．；          --- Do you think our volleyball players played very well in yesterday’s match?--- ____. They couldn’t have done better.A．It’s up to youB．Not so bad C．It’s good newsD．Absolutely