Why did the natural pearl trade collapse in the 1930s？
A. Because of competition from cheaper Japanese pearl-fishing.
Because of competition from oil industry.
C. Because of competition from cheaper Japanese cultured pearls.
D. Because of pollution from oil industry.
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The United States Constitution provides for a count of the population __________ a census,
A. called
B. which called
C. that it is called
D. as called
正确答案是（）
A. If being
Been
C. Be
D. Being
Why did Hampton hotels donate money to support citizen efforts？
A. In order to celebrate its 100th anniversary this year.
B. In order to restore the spirit of the wounded city.
C. In order to raise more money.
D. In order to quicken the restoration step.
What do the oil industry analysts think？
A. They think a windfall profits tax might work.
B. They think consumers will finally benefit from the large oil company profits.
C. They think a windfall profits tax is good for oil industry.
D. They think a windfall profits tax should also be imposed on pharmaceuticals industry.
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