History的疑問

1.Point out that Hong Kong's manufacturing industries developes rapidly after the Second World War,but during the 1970s,had to face many difficulties.
2.List the problem faces by Hong Kong's manufacturing industries during the 1970s.
3.Explain how Hong Kong's manufacturing industries reponded by developing technological-based industries and moving factories to the mainland.
4.Explain the faact that Hong Kong began to develop the financial sector after the 1970s,and took advantage of China's Policy of Reform and Opening-up to re-develop entrepot trade.