Medicine intermediate N - ethylethylenediamine ( NEED ) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement. 以丙烯酰胺为起始原料,经乙胺加成后,再经Hofmann重排两步反应后合成了药物中间体N - 乙基乙二胺 ( NEED ).
The defects of great men are the consolation of dunces.伟人有缺点是愚人的安慰.Young men think old men are fools, But old men know young men are dunces.青年人以为老年人蠢, 老年人认为年轻人傻....
Eyewitnesses spoke of a noise followed by a huge red light.目击者说响声过后出现了一道耀眼的红光。Police and prosecutors manipulated the eyewitnesses so they would finger Aldo...警方和检察官操纵目击证人指证奥尔多。Eyewitnesses say the police then opened fire...
When the chairman of Campbell's retired, McGovern was named as his successor.坎贝尔公司的总裁退休后，麦戈文被选定为继任者。Within hours, police corralled the three men Lewis had named.几小时之内，警察就抓到了刘易斯提到的那三个人。Efforts to reach the people nam...
This, however, produced in me a reverse reaction -- determined me to fight against such feudalistic ideology.这却引起了反作用,它激发了我和封建思想斗争的决心.Financial capitalists derived from feudalistic private bank owners and merchants.金融资本家...