Im a big fan of saving the environment， and I take part in Earth Hour annually. Earth Hour is an event where you turn off......

To maintain gas hydrate stability, low-temperature drilling fluids and high drilling speeds should be used while drillin......

表演类活动突破了语文学习活动原有的教学封闭状态,把学生置于一种动态、开放、生动的学习情境中,有利于学生创新精神的培养。 Pe......

目的探讨小肝细胞癌的少见CT表现及原因,以提高小肝细胞癌的诊断正确率。方法回顾性分析经手术及病理证实的19例小肝细胞癌共24个......

To discuss the applicability of advanced composite carbon fiber reinforced polymer(CFRP) and ultrahigh performance concr......