纯钛金属的熔化可采用的热源是
A．钨电极弧熔金B．碳棒电弧熔金C．电阻丝加热炉熔化D．煤气吹管火焰E．乙炔-氧气吹管火焰
参考答案：A
数据压缩有哪些条件
In relation to the law of tort, explain:
(a) The tort of ‘passing off’ regarding the use of the name of a company. (5 marks)
