2. 外语
  3. More than one million Americans participated in the six-year study. Most of the participants slept for 7 hours a night during t

More than one million Americans participated in the six-year study. Most of the participants slept for 7 hours a night during t

admin2009-06-15  55
问题 More than one million Americans participated in the six-year study.
Most of the participants slept for 7 hours a night during the study.
选项 A、Right
B、Wrong
C、Not mentioned
答案C
解析
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