英语翻译A study of about 4,000 old people in Chicago,USA,____tha
英语翻译
A study of about 4,000 old people in Chicago,USA,____that all of them last memory as years passed_____,among those people who ate fish once a week,the rate of this change was about 10% slower.And it was 13% slower among those who ate at ____two fish meals a week.
Eating fish has been known to ____the health of the heart .But most people do not eat _____ fish.ln the USA,most people eat a third of a week .
ln the Chicago study,people over the _____ of 65 living in one district were each tested for six years.The result showed that eating fish was good for old people 's memory.