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many migrants poured into australia during the 1 850s.as a result,the australian population increased by 50%in that decade. ()
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第6题:
It took ______ for the world to increase its population from 1 billion to 4 billion.
A) 100 years
B) 145 years
C) 1975 years
D) Over two million years
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第8题:
They are barely in their twenties and are already multimillionaires. At the age when many people are looking for their first job, the youngsters of The Sunday Times Rich List are buying country estates or jetting off to their overseas homes.Daniel Radcliffe, for example, who plays Harry Potter, has a fortune of ξ42 million, at 20.
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