【判断题】斜盘式轴向柱塞泵,它主要由转动的泵轴、缸体、柱塞和不转动的斜盘、配流盘等组成。改变斜盘的倾角方向,就可以改变泵的流量;改变斜盘的倾角大小,就可以改变吸排方向
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?Lots of young people listen to ______ even in the street or on the bus.
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?Football is purely a ________ sport for millions of people all around the world.
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?One of the most popular ______ on British television is the news and weather.
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?The _______ you need to switch on for Coronation Street is ITV
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?Yesterday Marvin_______TV for six hours as he was ill in bed.
【单选题】(高中Unit 5)下面哪一个选项是空缺处的最佳答案?I don't go to the _______very often as it has become very expensive.