单项选择题

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

A．Water absorbing ability.
B．The cell’s membrane.
C．Its surroundings.
D．The ability to maintain salt.
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A．Humans got equal teamwork with ants.B．Ants usually accomplish the most complex tasks.C．Ants communicate through chemicals.D．Ants have an amazing ability to specialize behavior.
A．Humans got equal teamwork with ants.
B．Ants usually accomplish the most complex tasks.
C．Ants communicate through chemicals.
D．Ants have an amazing ability to specialize behavior.
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