单项选择题

According to recent studies ______.

A．rats like to live in overcrowded conditions
B．men's behaviour and health are not related with the living space
C．living conditions affect rat's behaviour and health
D．None of the above

<上一题目录下一题>

热门试题

单项选择题

The writer is mainly talking about ______.

A．a person's living space needs
B．building and floors
C．equipment and conditions
D．population and violence

单项选择题

The writer also discloses that ______.

A．the larger population, the more violence
B．population has nothing to do with violence
C．violence determines population
D．population determines violence