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D.She needed an interpretation from mom7.What does the poem mean to mom?A.A memory of golden days.B.Daughter's gratefulness to her.C.A decoration in the plain kitchenD.Daughter's understanding of her.CAmong my friends,one topic seems to dominate our conversations:bones It makes sense,given that 20 percentof American women over 50 have osteoporosis(and that more than half have bone loss.For men,thefigures are lower:4 percent and a third.Worldwide,one out of three women over 50 and one out of five older menwill develop a fracture().Another reason for the endless argument about bone problems is mass confusion overhow best to strengthen your bones and whether diet really makes a difference.Diet research is always messy,and study results on nutrition and bone health haven't been consistent.Butgradually some clarity is emerging.As we draw up resolutions for what to eat,it's useful to look at new data onvitamin D.Calcium is the key clement for building bones,and.vitamin D helps to absorb calcium from the food wecat,so doctors often recommend D supplements()to make up forage-related bone loss.But a recent study found that taking D supplements for five years did not reduce the rate of fractures in seniors.That result built on earlier findings,led by the same team,that these supplements do not improve bone density()"Food and sun exposure likely provide enough vitamin D for healthy adults,"says Meryl LeBoff,whole d the study.What does help maintain strong bones for all of us?The easy answer is food high in calcium,such as milk andtofu.Getting it from food is best,.LeBoff says.,“because there are so many other nutrients(营养物质)，and you have amore continuous absorption than with D supplements."The other key element of bone health involves calories out rather than calories in.Weight-bearing exercisestimulates bone formation throughout life.So while focusing on better nutritional choices,add more exercise to yourdaily menu.8.What do the statistics in paragraph 1 emphasize?A.The concern about senior citizens.B.The seriousness of bone problems.C.The confusion about strengthening bones.D.The importance of having a balanced diet9.What does the underlined sentence in paragraph 2imply?A.Diet research is no longer a challenge.B.We've made resolutions to study diets.C.Findings on bone health prove to be similar.D.We begin to agree on ways to keep bones healthy.10.What can be inferred from the recent study?A.People can absorb vitamin Din food easily.B.The findings go against LeBoffs earlier ones.C.D supplements playa minor role than expected.D.Fractures are linked with weight-bearing exercise.