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
The search for the lost ship must be ______ because of poor weather.
A．released
B．resigned
C．abandoned
D．surrendered
单项选择题
Disabled people are now able to care for many of their own needs, ______ educational goals, and maintain jobs.
A．attempt
B．pursue
C．realize
D．perform
相关试题