多媒体应用软件开发通常采用（）软件开发方法。[单选题]
A.面向数据流
B.面向对象
C.模块化
D.结构化
参考答案：A
John _____ knowledge of radio just by staying around the radio station.
A．caught on
B．worked up
C．took up
D．picked up
A/G比例倒置
