单项选择题

Passage Three
Questions 33 to 35 are based on the passage you have just heard.

A．Excreting salt through gill cells.
B．Losing more water to their surroundings.
C．Drinking more water.
D．Diluting the amount of salt.

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Passage Three Questions 33 to 35 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。