听写：[scientific American 60 second science] &mp3

forerunnerUID：2234967

60 second science 20061024
This is scientific American 60 second science. I’m Kevin Bigus. Got a minute?
Doctors have long struggled to diagnose and treat eating disorders in part because sufferers can be so secret about their behavior. But just like(…..................). Researchers from Bergus Yong University have found a test of only few strands of hair can reveal changes in eating habit. They use mass (…) to identify tiny differences in the weight of carbon and nitrogen isotopes. The changes occur in one isotope when people sharply reduce intake of foods like meat and milk and another when the body actually begins to starve. The test, which needs only five strands of hair, predicted with 80% accuracy, when the person has anorexia, or bulimia. Some day, it may also help monitor relapses, sounds the changes in the hair (………) only a week of change of diet. Up till now, doctors and researchers have relied heavily on communications with patients, or often unable, or unwilling to acknowledge the problem. The new hair test could provide an objective biological way to diagnose eating disorders.
Thanks for the minute, for the scientific American 60 second science. I’m Kevin Bigus.
这是第一次的，对lz的做了些更改，希望高手指正，将括号中的补上
:)