与此呼应，各省份的研发人员规模同样整体上涨，只有海南、青海出现回落情况。从增幅来看，变动较大的省份集中在腰部以下区间，这是由于规模基数较小；而北京、上海、江苏、山东四个研发人员规模已达十万级的省份，增幅也超过整体水平（43.23%）。这意味着，
"When you regain these core competencies and you start exercising your muscles, your skills do not atrophy," he said. "It's safer. And yes, you are buying down risk, because you're able to test things in low Earth orbit before you need to get to the moon, which is exactly what we did during the Apollo era."
，更多细节参见夫子
Chris Damant/Bernwood Ecology
Фото: Amir Cohen / Reuters