contract system of internal research subjects

英 [contract system of internal research subjects]
美 [contract system of internal research subjects]

中文释义

课题承包制

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单词结构：

contract system of internal research subjects

字母数：45

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🎯 重点记忆：

  • 单词拼写：contract system of internal research subjects
  • 核心含义：课题承包制

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更新时间：2026-02-04 07:10:50