本文列举了一些含卤族元素的氧化剂对不同种类醇的选择性氧化实例.This article enumerate some Halogen - based oxidants and their some important applying examples.我们认为这是卤族离子与芳羧酸吸附竞争,使芳羧酸分子从银胶表面脱附所导致的.The influence of halogen ions on SERS of aromatic acids ...
I want the manager'sjob when he calls it a day.等到经理不干了之后，我想接替他的位子。Calls cost 36p (cheap rate) and 48p (peak rate) per minute.电话每分钟36便士（优惠费率）和48便士（高峰费率）。Not long afterward she received five calls in one day.不久之后，她一天内...
Markedness Theory is one of the important contributions of Prague School to linguistics.标记理论(MarkednessTheory)是布拉格学派对语言学的重要贡献之一.The move to Prague was a daunting prospect for the bishop...对于主教来说，要迁往布拉格有点儿令人发憷。One of the ...