It should own or rent premises in hong kong to engage in substantive business operations ; and 应在香港拥有或租用业务场所从事实质性商业经营;以及
3.
Open - outcry trading is supposed to be a quaint outdated practice rapidly being replaced by sleeker cheaper electronic systems 可见,伦敦是能源交易所更好的业务场所。答案为a ,属推理判断题。