高聚物都是由共价链联接原子而形成的长链分子所组成.Polymers consist of long molecular chains of covalently bonded atoms.同函奉上10箱货物共价5000美元的发票一张.Enclosed we hand you an invoice, $ 5 , 000, for 10 cases goods.另外蛋白质的共价修饰可对某些蛋白质的运动产生影响.Additionally, c...
...Menno Meyjes, a young Dutch writer, who had had his first success with the sleeper 'The Children's Crusade'.凭借着《童子军》的意外走红而首尝成功的年轻荷兰作家——曼诺·梅耶斯Footballers launched an unprecedented crusade against racism ...