The US space agency has released a "pre-solicitation" for what is expected to be a hotly contested contract to develop a spacecraft to orbit Mars and relay communications from the red planet back to Earth.
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Глава ведомства подчеркивал, что коррупция представляет угрозу национальной безопасности страны.
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Small Business USA。关于这个话题，同城约会提供了深入分析
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