3.最近一年销售收入在2亿元以上的企业，比例不低于3%。
"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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Despite the physical and emotional demands of the job, McKenzie says nothing beats the incredible experiences he's had - as well as the satisfaction of contributing to environmental research.
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专家强调，若没有监管部门的许可，车企原则上不得自行披露事故相关信息，需等待监管部门出具统一、有公信力的权威结果后，再进行官方宣布。