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美国国家公共电台 NPR Critics Trying To Stop A Big Study Of Sepsis Say The Research Puts Patients At Risk

DAVID GREENE, HOST: Today, a consumer advocacy organization is asking federal health officials to halt a large medical study that's being conducted at major universities nationwide. Public Citizen says this study involving treatment for sepsis puts p

发表于:2018-12-18 / 阅读(68) / 评论(0) 分类 2018年NPR美国国家公共电台8月

VOA标准英语2012--Unusual Mars Rock Surprises Rover Scientists

Unusual Mars Rock Surprises Rover Scientists Curiosity's engineers on Earth put the drilling and sampling tools on the rover's robotic arm to full use this week as they assessed the makeup of the pyramid-shaped rock. The sample is named Jake Matijevi

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2012年(十月)
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