单项选择题

A．Why species don’t avoid extinction by adapting.
B．Why species become extinct at the rate they do.
C．Why humans aren’t extinct.
D．How many species aren’t extinct.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Speed.B．Concentration.C．Strength.D．Agility.
A．Speed.
B．Concentration.
C．Strength.
D．Agility.
单项选择题
A．It had its imitations.B．Its results were regarded as final.C．It was supported by the government.D．It was not sound theoretically.
A．It had its imitations.
B．Its results were regarded as final.
C．It was supported by the government.
D．It was not sound theoretically.
相关试题