2. 外语
  3. Who voiced opposition to the use of pacifiers on infants? Dr. Fern Hauck’s research team______.

Who voiced opposition to the use of pacifiers on infants? Dr. Fern Hauck’s research team______.

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问题 Who voiced opposition to the use of pacifiers on infants?
Dr. Fern Hauck’s research team______.
选项 A、worked closely with the experts in several countries.
B、had a debate with WHO experts in Washington Post.
C、didn’t have a unanimous research conclusion.
D、conducted over 10 studies before announcing the results.
答案C
解析
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