"There has to be a better way in line with our history," Isaacman said. "We did not just jump right to Apollo 11. We did it through Mercury, Gemini, and lots of Apollo missions, with a launch cadence every three months. We shouldn't be comfortable with the current cadence. We should be getting back to basics and doing what we know works."
Цены на нефть взлетели до максимума за полгода17:55，详情可参考爱思助手下载最新版本
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* @param arr 待排序数组