单项选择题

Questions 23 to 28 are based on the conversation you have just heard.

A．They can not accomplish their daily tasks.
B．They suffer injuries from less amount of sleep.
C．They get no damage in their performance.
D．They operate worse than normal.
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单项选择题
A．Water absorbing ability.B．The cell’s membrane.C．Its surroundings.D．The ability to maintain salt.
A．Water absorbing ability.
B．The cell’s membrane.
C．Its surroundings.
D．The ability to maintain salt.
单项选择题
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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