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This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any
Scientific American(二)月
New Antibiotic Found in Human Noses 研究人员在人类鼻子发现新抗生素 The search for new drugs to fight infections has led to a discovery in an unlikely place in peoples noses. What researchers found in noses is a compound called lugdunin
2016年VOA慢速英语(八)月
About 1500 years ago Chinese settled there, but the Dutch imperialist invaded there in the 17th century. After that, in 1662 Zheng Chenggong, a hero of nation,drove them out. Since 1683 the island was ruled by Qing Dynasty nearly two centuries. Unfor
英语作文
Whats the lively in your kitchen? In terms of bacteria is it the the dish or maybe your coffee maker. Because even known caffeine has anti-bacteria effects, it turns out that machine can hold back majority of bacteria, including some pathogenic speci
2015年Scientific American(十二)月
What's the liveliest part of your kitchen, in terms of harboring bacteria? Is it the cutting board? The dish sponge? Or maybe your coffeemaker? Because even though caffeine has antibacterial effects, it turns out espresso machines can harbor a whole
2017年Scientific American(二)月
hemagglutinin 血凝素 Neuraminidase 神经氨酸酶 Nucleoprotein 核蛋白 Nonstructural Protein 非结构蛋白 Matrix Protein 基质蛋白 world organization for animal health (OIE) 国际兽医组
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