"We've also got these big tanks full of oxygen and nitrogen, which are mixed to make air, and also water, so that we can provide everything that the astronauts need in the crew module to keep them alive on their journey."
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The UK's National Screening Committee has recommended that only a very small group of men at high risk of prostate cancer should be screened for the disease.，这一点在safew官方版本下载中也有详细论述