单词:telmatologist
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皮肤肿瘤 色素痣 pigmented nevus;PN 表皮痣 epidermal nevus 脂溢性角化病 seborrheic keratosis 先天性血管瘤 hemangioma congenitale 表皮囊肿 epidermoid cyst 粟丘疹 milia;miliu
This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Biologists, traditionally track migrations by tagging animals with devices that allow their movements to be monitored. But Homo sapiens can't be fitted wi
It Sounds Like...Onomatopoeia! The world is full of different sounds. Some sounds are pleasing to hear, like a bird's voice. Other sounds hurt your ears, like a loud machine. But how do we explain in words what a sound is? For example, how do you des
By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c