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Long Before Burning Man, Zozobra Brought Fire And Redemption To The Desert play pause stop mute unmute max volume 00:0005:40repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update
头孢菌素类 第四代 头孢唑喃钠 Cefuzonam Sodium Cosmosin,CZON 氟氧头孢钠 Flomoxef Sodium 氟莫克西,6315-S 头孢匹罗 Cefpirome 头孢吡隆,氨噻肟吡戊头孢 其它Β-内酰
This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr
Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康
Did she kill her 9 kids? 她杀了自己的9个孩子吗? One of the nation's most notorious murderous mothers, Marybeth Tinning prepares to walk out of prison after 3 decades 作为美国最出名的杀人狂妈妈之一,玛丽贝丝廷宁将在服
本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou