问答题

Scientists have long assumed that most of the ice that melted was in the Northern hemisphere (半球) during the 30,000-year long ice age.

【参考答案】

科学家很久以来都认为，在长达30000年的冰川期，大多数冰层都是从北半球融化的。

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问答题

A new study from Switzerland sheds light on where ice sheets melted during the ice age.

单项选择题

The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. So scientists thought that ______.

A．most of the ice melted in the Northern hemisphere
B．most of the ice melted in the Southern hemisphere
C．The North Pole is colder than the South Pole
D．The South Pole is colder than the North Pole

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