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Recent studies have1. that exercise is good to 2. your physical strength and brain. A new study finds that people become 3. after starting a running program. In their study, the researchers had seven young people start a running program consisting of running 30minutes,two or three 4. a week for at least 12skills before and after the 3-month running program. After 12 weeks of running, scores on all of the tests5. greatly in the runners, as did their reaction times(反应时间)in completing the tests, but the scores began to fall again if the runners stopped their6..

The results could have suggestions for old people as 7..According to these researchers, old people8.started a 4-month exercise program also showed it may help doctors find a way to use exercise and running to help old people and those 9.Altheimer’s(老年痴呆) disease improve 10. memory and other mental skills.

九年级英语选词填空困难题

少年,再来一题如何?
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