美国著名的政治学家和政策科学家查尔斯·林德布洛姆提出的决策模式是（）
A．理性决策模式
B．渐进决策模式
C．集团决策模式
D．精英决策模式
参考答案：B
该配置文件的12～15行实现什么配置功能
She told me that she has already gone to the United States four times before she attended that conference.
A. had already been B. has already beenC. already went D. was already going
