单项选择题

In which way are the ants different from other non-human societies

A．They do not need to search for food.
B．They do not need to look for shelter.
C．Individuals vary in social status.
D．Individuals perform different functions.

<上一题目录下一题>

热门试题

单项选择题

The scientist's work was based on______.

A．occasional observations
B．systematic observations
C．observations of several nests
D．observations of an undisturbed nest

单项选择题

What is the most suitable word that describes the work of a policeman according to the passage

A．Dangerous.
B．Demanding.
C．Distressing.
D．Dramatic.