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's the policeman's biggest headache

A．He has to get the most desirable results without breaking the law in any way.
B．He has to justify his arrests while unable to provide sufficient evidence in most cases.
C．He can hardly find enough time to learn criminal law while burdened with numerous criminal cases.
D．He has to provide the best possible public service at the least possible expense.