Section (A)Iron and the Effects of Exercise Sports medicine experts have observed for years that endurance athletes, particularly females,frequently have iron deficiencies. Now a new study by a team of Purdue University researcherssuggests that even

发表于:2018-12-04 / 阅读(29) / 评论(0) 分类 新视野大学英语读写教程(3)

[00:06.79]Jane works at the Center for Disease Control and prevention [00:12.12]as a disease detective. [00:15.46]Listen to the tape and answer the questions. [00:19.91]The Diseases detective. [00:23.46]Jane is one of the experts at the Center for Di

发表于:2018-12-13 / 阅读(155) / 评论(0) 分类 人教全日制普通高中英语(必修)高二

Sickle cell disease is a blood disorder due to a single genetic mutation. It remains in populations because the mutation has a flip sideit helps to protect against malaria. Now another mutation has been shown to afford similar protection. Deficiency

发表于:2018-12-24 / 阅读(46) / 评论(0) 分类 Scientific American(十二)月

Gene for Disease Has Healthy Flip Side A study in the journal Science finds that the gene for anemia-causing G6PD deficiency also protects against malaria, thereby keeping the gene active in populations. Cynthia Graber reports Sickle cell disease is

发表于:2019-01-30 / 阅读(142) / 评论(0) 分类 60秒科学

HEALTH REPORT – World Tuberculosis Day, 2005 By Cynthia Kirk Broadcast: Wednesday, March 23, 2005 Thursday is World Tuberculosis Day. It is recognized on March twenty-fourth each year to raise aware

发表于:2019-01-30 / 阅读(115) / 评论(0) 分类 健康与经济

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Imagine a baby boy. Lets call him

发表于:2019-02-14 / 阅读(51) / 评论(0) 分类 环球英语 Spotlight