单词：Doppler ultrasound echocardiograph
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After meeting the foster moms, we all walk to the actual orphanage where Marissa was brought as a baby. We're told there are about 500 children living at this orphanage. There are tens of thousands of children just like them across China. All around
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An official in Wisconsin says at least five people have been killed in a shooting rampage in northern Wisconsin. It happened in Crandon about 225 miles north of Milwaukee. President Bush paid honor to the men and women who put their lives on the line
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Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U
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By Carol Pearson Washington 14 May 2008 Doctors say mammography is the best way to find breast cancer before it gets a chance to spread. But mammograms can miss some cancers, especially for women with dense breast tissue. Now, a new study shows for t
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A son and his father were walking on the mountains. Suddenly, the son falls, hurts himself and screams, AAAhhhh!!!To his surprise, he hears the voice repeating, somewhere in the mountain, AAAhhhh!!! Curious, he yells, Who are you? He receives the ans
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