单项选择题
液压泵在某一工作压力下实际排出的流量称为( )。
A、实际流量
B、额定流量
C、理论流量
液压泵在某一工作压力下实际排出的流量称为( )。
A、实际流量
B、额定流量
C、理论流量
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单项选择题
Whatis wrong about the development of news?()
Whatis wrong about the development of news?()
A.After
the camera is widely used, the picture news will flourish.
B.After
the application of TV and camera, there will be live news.
C.The
emergence of VR technology will give birth to panoramic news.
D.Panoramic
news can be broadcast in the traditional way without new platform.