单项选择题

A．216,000
B．206,000
C．260,000
D．266,000
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单项选择题
A．They could work for 24 hours a day.B．They were worse hunters.C．They were more persistent hunters.D．They worked the whole night.
A．They could work for 24 hours a day.
B．They were worse hunters.
C．They were more persistent hunters.
D．They worked the whole night.
单项选择题
A．the rapid growth in world oil consumptionB．the rise of China and IndiaC．the construction of new pipelines is becoming more difficultD．the rise of oil price
A．the rapid growth in world oil consumption
B．the rise of China and India
C．the construction of new pipelines is becoming more difficult
D．the rise of oil price
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