ondragstart="return false" onselectstart="return false" style="cursor:pointer;-moz-user-select: none;user-select:none;margin:0" oncontextmenu="return false"
- 上传时间:
2014-01-07
- 类别主题:
素材
|
不限
- 年级科目:
高中
|
英语
- 版本版别:
外研版
|
必修2
- 费用类别:
免费
|
充值
- 所属地区:
不限地区
- 资料属性:
14.84 KB
-
高中英语 MODULE 1 Our Body and Healthy Habits背景知识拓展 外研版必修2
-
注:预览偶有瑕疵,不代资料本身有误,请放心下载,如遇资料质量问题,请联系400-080-6798
- 返回
-
It'snotjustthemostphysicallydemandingjobsthatcanleadtoseriousinjuries.Workingwithaseeminglyharmlessmouseandkeyboardcancausechronicinjuriesjustaseasilyashaulingaloadofcement.Infact,repetitivestraininjuriessuchascarpaltunnelaffecthundredsofthousandsofAmericanworkersayear,andleadtotensofbillionsofdollarsannuallyinworkerscompclaims,accordingtotheOccupationalSafetyandHealthAdministration(OSHA).NelsonLiu,acertifiedacupuncturistinLosAngeles,seesmanyofthesedisordersinhispatients."Peoplewhositatdesksand