这家航空公司亏损达3,500万美元，而澳航出资帮助其摆脱了困境。The airline had losses of $35m and was bailed out by Qantas.上半场以21：3领先的法国队有8个达阵得分。The French, who led 21-3 at half time, scored eight tries.英国许多海滩连最起码的卫生标准都达不倒。Many of Britain's beach...
聚羟基乙酸的经典制备方法主要有两种:直接缩合聚合法和乙交酯开环聚合法.There are two means available for the preparation of PGA - synthesis polymerization and ring - opening polymerization....
They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle of the human genome.他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。Genome - based Celera Genomics, the private compa...