n. 团体, 组, 团, 群 v. 聚合, 成群
Finally, evolutionary processes take place at the group level.
四级 · CET-4 2026年6月 第1套
Groups of highly cooperative individuals have higher chances of survival because they can work together to reach goals that are unattainable to less cooperative groups.
四级 · CET-4 2026年6月 第1套
Both groups lived just as long, but those who could ride an exercise bike at a fast rate for 6 minutes in the initial test had a much lower risk of dementia later on than those who couldn’t complete the workout.
四级 · CET-4 2026年6月 第2套
Instead, it’s a group of symptoms caused by other conditions.
四级 · CET-4 2026年6月 第2套
H) Though the study mentioned above was fairly small(only 191 women took the initial fitness test, which means it’s hard to maintain statistical significance while breaking the group down into subcategories of more or less fit), it does give us hope that dementia can be prevented or delayed through exercise in one’s middle age.
四级 · CET-4 2026年6月 第2套