Additional social stresses may also occur because of the population explosion or problems arising from mass migration movements-themselves made relatively easy nowadays by modem means of transport.

单项选择题A．15 hours.B．16 hours.C．18 hours.D．19 hours.

填空题king

单项选择题A．free college educationB．free health careC．free world travelingD．free hotel rooms

单项选择题A．Southampton.B．New York.C．London.D．Paris.

问答题in the early industrialized countries of Europe the process of industrialization-with all the far-reaching changes in social patterns that followed-was spread over nearly a century, whereas nowadays a developing nation may undergo the same process in a decade or so.