[单项选择]Can money buy happiness Yes, (47) the authors of a new study--but only up to a point. Psychology has shown that richer people generally rank the overall quality of their lives more (48) than poorer people do. At the same time, their actual happiness seems to be (49) less by their ability to buy more than by being able to keep up with those with comparable resources in their own age group. "Our findings point to the possibility that, rather than promoting overall happiness, continued income growth could (50) an ongoing consumption race where people have to consume more and more, just to maintain a (51) level of happiness," writes Glenn Firebaugh of Penn sylvania State University. The study was (52) at the American Sociological Association’’s 100th Annual Meeting. Whether the rich are happier as a whole than their less (53) fellows is becoming an increasingly hot topic for debate. Recent years have (54) many writings on the "science of happiness." Richer peopl