单项选择题

Questions 23-25 are based on the following dialogue:
In which of the following places have snakes never been found

A．In green forests.
B．In the Pacific Ocean.
C．In dry deserts.
D．In the North Pole region.

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单项选择题

单项选择题

Questions 23-25 are based on the following dialogue: In which of the following places have snakes never been found 您的浏览器不支持 audio 元素。