单项选择题

A．They will face extinction without artificial reproduction.
B．They will have to migrate to find new homes.
C．They will be able m survive in the preserves.
D．They will gradually die out.
<上一题 目录 下一题>
热门 试题

单项选择题
A．He rarely noticed when students are late.B．He is usually punctual.C．He advised his students to wear watches to class.D．He has been unpredictable.
A．He rarely noticed when students are late.
B．He is usually punctual.
C．He advised his students to wear watches to class.
D．He has been unpredictable.
单项选择题
A．Storms and floods.B．Disease and fire.C．Rapid increase of the animal population.D．Less space for their growth.
A．Storms and floods.
B．Disease and fire.
C．Rapid increase of the animal population.
D．Less space for their growth.
相关试题