通常情况下，物质存在的三种状态是______、______、______．
物质存在的三种状态是固态、液态、气态．
故答案为：固态；液态；气态．
遗传工程、太阳能等行业正处于行业生命周期的（）。
A.幼稚期
B.成长期
C.成熟期
D.衰退期
In relation to the Companies Act, 2006, explain the duty of directors to promote the success of the company, and to whom such a duty is owed. (10 marks)
