They invited the world to participate in at international exposition.他们邀请世界各国参加国际博览会.His speech was an exposition of the genesis of the conflict.他的演讲阐述了冲突的起源。The fullest exposition of Coleridge's thought can be foun...
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...
" The wolf is not a desperado, but a scoundrel. "“ 狼不是亡命徒, 而是恶棍!" Melly, I wouldn't have that old desperado in my house,'said Scarlett crossly." 媚兰, 我是不愿意让这个老鬼待在我屋里, "思嘉气恼地说.Don't provoke me too far . My f...