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研发强度并未随“分子”研发投入的规模变大而递增,由此可见,企业研发强度受“分母”营收规模的影响似乎更大。随着营收规模扩张,企业往往将资源倾向市场扩张等方向,反而淡化了研发投入的紧迫性。
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then the += will modify the list, and then raise an exception because you can’t assign to that tuple item because the tuple is immutable, but the list will have been mutated.
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His thesis at the Navy Academy was in the unheard-of topic of liquid-fuel engines. After graduation, he hoped to specialise in this pioneering new technology.。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考
到了2025年,孟红娟的目光进一步延伸。她熟悉医疗用品的生产流程,对老年人护理、康复等环节并不陌生。