A.four/three　
B.five/two
C.six/three　
D.six/two

A.Because Australia is too far away from Europe.
B.Because Australia is the least mountainous and most level of the world.s continents.
C.Because Australia is separated from the rest of the world by seas.
D.Because most of the continent is hot and dry.

A.1%
B.1.5%
C.2%
D.2.5%

A.Koalas and possums.
B.Emus and kangaroos.
C.Echidnas and platypuses.
D.Budgerigars and cockatoos.

A.oaks and elms　
B.palms and pines
C.willows and poplars　
D.eucalypts and wattles

A.the eastern coastal areas of Queensland
B.the Blue Mountains
C.the New England Tableland
D.the highest peaks of the Snowy Mountains and Victorian Highlands

A.southeast coastland　
B.southwest coastland
C.northeast coastland　
D.northwest coastland

A.one third　
B.two thirds
C.half　
D.more than half

A.the Eastern Plateau,the Central highlands and the Western Lowlands
B.the Central Plateau,the Western Highlands and the Eastern Lowlands
C.the Western Plateau,the Eastern highlands and the Central Eastern Lowlands
D.the Central Plateau,the Western highlands and the Eastern Lowlands

A.the third largest　
B.the fourth largest
C.the fifth largest　
D.the sixth largest

A.the Northern Hemisphere　
B.the Southern Hemisphere
C.the North Pole
D.the South Pole