目前，有两种重要的程序设计方法，分别是结构化程序设计和______程序设计。
参考答案：面向对象
Not until________,_________.
A．did she take off, I realized
B．she took off, did I realize
C．did she take off, did I realize
D．she took off, I realized
爷爷与孙子下棋，爷爷赢1盘记1分，孙子赢1盘记3分，下了8盘后两人得分相同，则爷爷赢了______盘．
ff, did I realize