输出：[3,1,2,1,1,0]
"Launching radioactive material through the Earth's atmosphere brings safety concerns. You have to have a special license to do that, but it is not insurmountable," says Dr Simeon Barber, planetary science specialist at the Open University.
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①关于“帮扶家庭不够困难”的误解
Apollo 8 was Nasa's most dangerous mission yet