单项选择题
The Great Barrier Reef is included on the World Heritage list because（）
A.it has the most beautiful seascape in the world B.it has the greatest number of islands in the world C.it has the most diverse and complex marine life in the world D.it has the longest coast in the world
单项选择题 The only city on the western coast which has a population of more than one million is（）
单项选择题 Why is Australia.s New South Wales called the premier state?（）
单项选择题 Australia is a nation of immigrants because the overwhelming majority of the Australian population are（）.
