For added protection choose a lipstick with a sun screen.选择防晒护唇膏来增强保护。Protection of sites, habitats and landscapes is of uppermost priority.保护遗址、栖息地和风景区是重中之重。Your arms and legs need protection from light bouncing off gla...
It must be alloyed with more creative, generative processes to accomplish much.要想大有作为,就必须融入更富创造力和生产力的过程.Generative Semantics was developed as a reaction to Chomsky's syntactic - based TG Grammar.生成语义学的形成是对乔姆斯基以句法为基础...
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 )....