单项选择题

Many rare species of plants and animals are threatened with ______ with the worsening of environment and mass hunting.

A．extinction
B．migration
C．destruction
D．extraction
<上一题 目录 下一题>
热门 试题

单项选择题
The annual parade ______ the soldiers who died in the two World Wars.
A．commends
B．memorizes
C．propagates
D．commemorates
单项选择题
A safety analysis would have identified the ______ target as a danger. Unfortunately, it was never done.
A．overwhelming
B．constant
C．potential
D．inevitable
相关试题