单项选择题

The pessimist physicist mentioned in Paragraph 3 says that ______ all the oil in Iraq.

A．each year the world consumes as much oil as
B．since it was discovered, the world has consumed nine times as much oil as
C．the oil that is known to the world but hasn't been mined amounts to more than twice as much as
D．the oil reserves that are still unknown to the world are no less than five times as much as

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单项选择题

Advanced technologies can do all of the following EXCEPT that ______.

A．they can find oil deeper in the ground
B．they can increase mining efficiency
C．they can cultivate microorganisms that produce oil
D．they can delay peak oil production

单项选择题

According to the passage, which of the following statements is true

A．How long the oil age will last is simply an academic question.
B．The oil price this year set a new record.
C．Shell Group reduced its reserves to 4.5 billion barrels this year.
D．Economists disagree with one another on how much oil you can realistically min