2. 外语
  3. Leptin is effective in reducing weight but it’s many years away before humans can use it. After being ______ leptin, the obese

Leptin is effective in reducing weight but it’s many years away before humans can use it. After being ______ leptin, the obese

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问题 Leptin is effective in reducing weight but it’s many years away before humans can use it.
After being ______ leptin, the obese mice start consuming less food and burning more fat, which is confirmed by Friedman together with three separate teams of researchers.
选项
答案injected
解析 参见文章第四段第一句话：By injecting leptin into obese mice．．．including Friedman’s．．．confirmed that．．．本题重点是要锁定关键词，快速缩小范围。本题中“three separate teams”和“confirmed”就是关键词。找到inject后，还要根据题目，适当变换形式。
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大学英语四级

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