1,the exploration of real space will change only if the computer technoledge has been developed advance.
2,SZ 5th sent the first Chinese astronaut to space successfully , marking the start of Chinese space era
3,tha rocket launched by an incredible speed to space,which is 3 times as the light speed
4,we are scientists ,not fiction writters,so we have to describ the truth of scence
5,they coudn't earned their living at that time ,not even paidfor the tuition
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