单项选择题

Humans should not develop their economy at the ______ of the ecological environment.

A．destruction
B．pollution
C．expense
D．mercy
<上一题 目录 下一题>
热门 试题

单项选择题
Chemistry is closely ______ with other studies: physics, biology and so on.
A．corresponded
B．concerned
C．correlated
D．cooperated
单项选择题
This policy gave ______ to private property and led to differences between the rich and the poor.
A．life
B．birth
C．way
D．death
相关试题