quEstions 4 to 6 ArE BAsED on thE Following ConvErsAtion.At thE EnD oF thE ConvErsAtion, you will BE givEn 15 sEConDs to AnswEr thE quEstions.
whiCh is not mEntionED in thE ConvErsAtionA．thE russiAn spACE progrAm.
B．thEChinEsE spACE progrAm.
C、thEEuropEAn spACE progrAm.
D．thEAmEriCAn spACE progrAm.