足球比赛中的香蕉球是？（）
A、弧形球
B、倒勾球
C、扑球
参考答案：A
国际化标准ISO提出的OSI模型将计算机通信的功能划分为（）个层次。
After making a big decision without his parents’ permission, he went abroad to Brazil _____ his brighter career.
A．in search for
B．for search of
C．in search of
D．search for
