2. 外语
  3. While researchers may not______the expansive claims of hard-core vitamin enthusiasts, evidence suggests that the nutrients play

While researchers may not______the expansive claims of hard-core vitamin enthusiasts, evidence suggests that the nutrients play

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问题 While researchers may not______the expansive claims of hard-core vitamin enthusiasts, evidence suggests that the nutrients play a much more complex role in assuring vitality and optimal health than was previously thought.
选项 A、authorize
B、license
C、counteract
D、endorse
答案D
解析 本题空格处是说研究者没有支持那些顽固的维生素狂热者。D项“endorse在(票据)背面签名，正式赞同或支持”符合题意。如：The application was endorsed by the governors’board．(申请书已由董事会批准。)其他三项“authorize批准；license许可，特许；counteract抵消，阻碍”都不正确。
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