Failed in sabotaging APEC summit in Sydney of Australia.澳大利亚悉尼APEC会议遭遇惨败.Altima accused Telenor of sabotaging its growth.Altima即控告Telenor蓄意阻挠它的发展.So she treads lightly , trying to create a collegial atmosphere, unaware t...
禁毒专家说它可能会结束强效可卡因吸食泛滥的局面。Drug experts say it could spell the end of the crack epidemic.每隔几年他们就会因这条河的泛滥而被迫离开家园。The river flooded them out every few years.这座城市毒品泛滥。The city is awash with drugs....
A neutron is simply a neutral particle in the nucleus of an atom.中子就是原子核里不带电的粒子。Neutron is neutral and slightly heavier than the proton.中子是中性的,比质子略重.These elements alone, however, are not quite as satisfactory for neutro...
简要介绍以此类方法对合成苯甲醛的研究.Based on the reactions , this paper reports research for synthesizing benzaldehyde.再溴代得到2-溴 -4,5-二甲氧基苯甲醛,收率为91.9%,并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性.This product with Br 2 was obtained 2 - bromo - 4,5 - hydroxy...