【单选题】Butch took me by surprise as he ____ and proposed marriage holding a dozen red roses.
【单选题】Mr. Su teaches ______ Chinese. [ ]
【简答题】文献是记录知识的一切载体,即用文字、图像、符号等手段记录人类知识的各种载体。( )
【判断题】Butch proposed to me and we got married three years later.
【判断题】设置变频器参数时不用考虑被驱动的电机功率
【判断题】Ya me he enterado su nombre y su número.