选择题：Nancy Liu amved in Sydney from China as a"skilled immigrant"with an economics de

Nancy Liu amved in Sydney from China as a"skilled immigrant"with an economics degree 14 years ago.With her husband,she set up a business consultancy in the suburb in southem Sydney.However,Liu was only an epitome of thousands of Chinese investors.Since then,Chinese investment has transformed the city:many of its shop signs are now in Chinese.Ms Liu was a forerunner of a new wave of Chinese immigrants to Australia's oldest and biggest city.Hong Kong once supplied most of Australia's Chinese settlers,but over the past few years the pattern has shifted.Now it is the rising middle classes from other places of China who go there,looking for a more relaxed life style.About 4%of Sydney's people were bom in China.Currendy,China has become Australia's biggest trading partner,and its largest source of foreign students.