单词：methyl n-butprate
单词：methyl n-butprate 相关文章
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
农业与发展
In a Valentine's Day with a difference, residents of the Klong Toey slum near Bangkok's port have come to the aid of the children of Haiti. Volunteers and children from the Duang Prateep Foundation, which works with the community, on Sunday walked th
VOA标准英语2010年(二月)
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
经济学人科技系列
Something of the salt sea yet lingered in old Bildad's language, heterogeneously mixed with Scriptural and domestic phrases. 比勒达的口音中夹杂着水手腔、家乡土语和《圣经》上的话，显得有几分刺耳。 Avast there, avast
白鲸记
Avast there, avast there, Bildad, avast now spoiling our harpooneer, cried Peleg. 别说啦,别说啦,比勒达,别再糟蹋我们这位标枪手吧,法勒嚷道。 Pious harpooneers never make good voyagers- it takes the shark out of 'em; 虔诚的标
白鲸记