单项选择题
Tasmania is an island which lies（）of the Australian mainland.
A.north of the northeastern corner B.south of the southeastern corner C.east of the northeastern comer D.west of the southeastern corner
单项选择题 Western Australia is the biggest Australian state,but its population is only（）of the country.s population.
单项选择题 Adelaide,the capital of South Australia,is internationally known for its（）
单项选择题 The Great Barrier Reef is included on the World Heritage list because（）
