十分钟在线等！！要百分百正确率！！！！请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在

十分钟在线等！！要百分百正确率！！！！请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
SYDNEY—Australia’s economic boom is encouraging a steady stream of unexpected visitors looking for work: Americans.
U.S. citizens are heading to Australia in small but growing numbers as near-10% unemployment at home drives more to look for jobs Down Under, where China’s thirst for iron ore (矿石) and energy is transforming the Pacific nation into an economic powerhouse.
A bricklaying student from Silver Trowel, a leading provider of quality education and training in the building and construction industry, apprentices (当学徒) on a building project in Western Australia, where workers are in short supply.
Daniel Davila, a 23-year-old floorer from Camarillo, California made the 14-hour move across the Pacific two years ago. He had been forced to take a job stocking shelves at a local grocery store for $8.90 an hour when he couldn’t get work fixing floors.
On a good day in Australia, he now makes as much as 50 Australian dollars (US$50.21) an hour—about twice the amount for a typical flooring job in the U.S. He plans to start his own flooring business.
“I can make what I did in a week in the U.S. in less than a day here,” said Mr. Davila, who lives near a mining boom town in Western Australia.