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美国在目前针对非典的预防工作中总结出一系列的措施，其中有一项建议很值得我们重视。许多人做运动喜欢达到一定强度和进行足够长的时间，认为动得越多越容易达到预想的效果，其实不然。运动固然是件好事，而且在非典流行的这段时间里提倡做一些有益提高机体免疫力的活动，不
In the current prevention work on SARS, the United States has summarized a series of measures. One of the recommendations deserves our attention. Many people like sports to reach a certain intensity and long enough to think that the more moves, the easier it will be to achieve the desired effect, but it is not. Exercise is certainly a good thing, and during this time of SARS, it is advocated that there should be some activities that are beneficial to enhance the immunity of the body.