题目内容
Mining has been central to theAustralian economy since the 19th century , as both a catalyst to national development and a major source of export income.
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InAustralia, as elsewhere in the world, tourism is a rapidly growing industry.
The main feature ofAustralia's trade is the exchange of raw materials for finished products.
Since the end of World War II there have been great changes inAustralia's trading patterns and international economic relations.
A significant reorientation of trade towards Asia and the Pacific is now taking place inAustralia.
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