单选题
149 Those units and components ( )which deliver large volumes of compressed air from a power source to connecting points for such other systems as environmental controls, deicing, etc.
A
将大量压缩空气从气源输送到其他系统,如环境控制、除冰等连接点的组件和部件(管道和活门)
B
将高压空气从气源输送到其他系统,如环境控制,除冰等连接点的组件和部件(管道和活门)
C
将大量压缩空气从引气管路输送到其他系统,如环境控制、除冰等连接点的组件和部件(管道和活门)
答案解析
正确答案:A
