2021—2025 年度，中国企业研发投入的区间分布保持稳定，延续了以亿元和千万元级企业为“腰部力量”、百亿元以上和千万元及以下企业作为“首”“尾”两端的基本态势。腰部区间覆盖了最大比例的企业数量，构成了研发梯队的中坚部分。
The report comes amid a battle between the US and China for supremacy over AI. At stake is how the technology is used on the battlefield and in the boardroom of the world’s two biggest economies.
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Nasa was targeting March for the launch, but its plans were delayed after a helium leak was discovered on the Space Launch System (SLS) rocket.
从9月开学，到11月这2个月，一直在帮助她适应集体生活，也坚持送往幼儿园，没有缺席过一次。