尼娜将银餐具收拾到盒子里去的时候发现少了一把调羹。There was a serving spoon missing when Nina put the silverware back in its box.他们继续往前走, 看见扔在地上的一些银餐具.They went on their way, and saw silver plate scattered about.不要在餐厅擦拭茶杯或镀银餐具.Do not wipe off yo...
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...