"NASA must standardize its approach, increase flight rate safely, and execute on the president’s national space policy," Isaacman said. "With credible competition from our greatest geopolitical adversary increasing by the day, we need to move faster, eliminate delays, and achieve our objectives."
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
。业内人士推荐爱思助手下载最新版本作为进阶阅读
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Peacock said her daughters now worry about her getting ill again