"To properly advance this critical technology to be able to support a future lunar economy, high power energy generation on Mars, and to strengthen our national security in space, it is imperative the agency move quickly," US transport secretary Sean Duffy, who was appointed temporary head of Nasa by President Donald Trump, wrote to Nasa, according to the New York Times.
（四）故意制作、传播计算机病毒等破坏性程序的；
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这是一场极其凶险的双线战役。稳住传统的影像和性能，保的是今天的饭碗；跳出固有框架去探索新市场，争的是明天的门票。
// ... function implementation