In today’s aerospace and aeronautics industry, a complete aircraft may be designed without a CAD/CAM system.( )

中国大学MOOC:"The is an Executive Branch agency, responsible for the nation’s civilian space program and aeronautics and aerospace research. ";

In 1977, a recording of the guqin piece “____________”, performed by master Guan Pinghu (1897-1967), was chosen to be included in the Voyager Golden Record, which was sent into outer space by the US-based National Aeronautics and Space Administration (NASA) on the Voyager 1 and Voyager 2 spacecraft.