Throughout their mission there have always been spacecraft attached to the space station to get them - and the rest of those onboard - home if there was an emergency.
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让更多好水果惠及更多消费者，关键在供给侧持续发力。一方面，要加强农业科技创新，降低种植和流通成本。从云南蓝莓依托基质栽培技术提升品质，到海南“树上熟”榴莲实现本土挂果，技术进步正不断丰富百姓的“果盘子”。另一方面，要完善冷链物流体系，畅通国内外流通渠道，用好超大规模市场优势，让更多特色水果以合理价格走进千家万户。
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This was Collins's last flight. She tells us that she always planned to stop after her fourth mission - to give others a chance to go to space.