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谁能充当载人航天的“开路先锋”? “狗与我们的生活更接近,我们对狗的生理进行了长期的研究,它们对人忠诚不渝,善解人意,是人类的兄弟。”从
Who can act as a “pioneer” of manned spaceflight? “Dogs are closer to our lives, and we conduct long-term research on the physiology of dogs. They are loyal and considerate to human beings and are human beings.” From