According to Sun Jiadong, the chief designer of the navigation system, "Many organizations have been using our system for a while, and they like it very much." COUNT 3
QSN1 Who is the chief designer of the BeiDou navigation system? ANS1 Sun Jiadong QSN2 What did Sun Jiadong have to say about the BeiDou navigation system? ANS2 "Many organizations have been using our system for a while, and they like it very much." QSN3 Who is Sun Jiadong? ANS3 the chief designer of the navigation system