单项选择题


A．spread
B．spread out
C．been spread
D．spread itself
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单项选择题
What is the purpose of the honeybee's dance
A．To determine the quantity of food at a site.
B．To communicate the location of food.
C．To increase the speed of travel to food sources.
D．To identify the type of nectar that is availabl
单项选择题
It can be inferred from the passage that brain size is assumed to ______.
A．be an indicator of cognitive ability
B．vary among individuals within a species
C．be related to food consumption
D．correspond lo levels of activity
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