These showed an evolution of increasing diversity through to the Eocene.一直到始新世,生物多样性都在不断地提高....a crucial period in the evolution of modern physics.现代物理学演化过程中的重要时期Evolution could be disproved in other ways, too.演化也可以用别的方法...
Sodium N - ( α - phenoxy ) - tetradecanoyltaurate ( SPTT ) was synthesized through Williamson etherification, hydrolysis, and acylation, using ethyl 2 - bromomyristate, phenol and taurine as the starting materials.以α - 溴...
Streaks of faint light were rising, heralding a new day.几道淡淡的晨曦正在升起, 预示新的一天的来临.Viruses are often classified into broad categories as mosaics , yellows, mottles, and streaks.病毒病常分为几大类,即花叶病, 黄化病, 斑驳或条斑.The flames begin as ...