科学60秒:医生昏昏欲睡 手术患者担责
Over the years ____1____ limit the hours of hospital interns and residents. Because someone putting in a 100-hour workweek might not be at their best when deciding which medication to prescribe o...
津巴布韦举办板球世界杯
England to Play World Cup Cricket Matches in Zimbabwe 人名:Tim Lamb,Robert MugabeCricket officials in London have decided that the England team will play as scheduled in the World Cup tournamen...
太阳能热水器 (1)
AfghanistanSolar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. The solar water heater described here is based on a design de...
金融次贷危机波及全球银行 (1)
Sweden SwitzerlandThis week, economic worries turned from inflation. On Wednesday, central banks in nations around the world acted together to lower interest rates. The fear is that a lack of cr...