塑钢门窗的优点？
参考答案：
由于其质轻，阻燃，密封性好，隔音好，耐腐，色泽鲜明，不需油漆，且克服了铝合金门窗导热的缺陷，塑钢门窗目前受到普遍欢迎。
Office 2000属于
A．系统软件
B．监控软件
C．应用软件
D．杀毒软件
In relation to the Securities Law of China:
(a) state, and explain the duties of, the relevant personnel of a listed stock company who are responsible for the disclosure of information in the company’s regular reports; (4 marks)
