单项选择题

According to the passage, Greenhouse gases do NOT include _______.

A．carbon dioxide
B．methane
C．nitrous oxide
D．fossil fuels

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单项选择题

Which of the following is NOT the cause mentioned in the passage that leads to the warm tem- perature in 2005

A．the increasing greenhouse gases
B．the presence of El Nino
C．the imbalance of the earth's energy
D．the Earth's increasing absorption of the Sun's energy.

单项选择题

We can learn from the passage that _______.

A．El Nino is the most destructive natural disaster.
B．NASA scientists are optimistic about the weather in 2005.
C．The energy imbalance of the earth will result in the warm temperature in 2005.
D．Oceans help store heat more efficiently than other things.

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