They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应....
The entire gastrointestinal canal presents certain common structural characteristics.整个胃肠道具有某些共同的结构特点.Acute ulcerations were responsible for significant gastrointestinal bleeding.急性溃疡形成是显著的胃肠出血的起因.Hemobilia is manifested...
Usually, you can try the internet recruiting, headhunters and also campus recruitment.一般说来, 你可以尝试一下网上招聘, 找猎头公司或组织校园招聘.In recruiting students to Computer Systems Engineering, the University looks for evidence of all-round...
历时弥久,相知愈深.The passage of time has deepened our mutual understanding.人们可以在工作单位相遇 、 相知和相爱.People can meet, know and love each other at their workplace.这些朋友并非泛泛之交,而是相知多年的老朋友.Old friends of not just yesterday but years and y...
你先撤，我掩护你。You go first. I'll cover you.消防队员把客人们从燃烧着的旅馆中撤出来.The fireman evacuated the guests from the burning hotel.他受到了严厉的批评并且被撤了职.He was severely criticized and removed from his post....