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．She lost a finger.B．She became a surgical nurse.C．Someone hit her in the nose.D．She had an operation on her nose.
A．She lost a finger.
B．She became a surgical nurse.
C．Someone hit her in the nose.
D．She had an operation on her nose.
单项选择题
A．Less than 6 months.B．2 months.C．6 months or more.D．1 month.
A．Less than 6 months.
B．2 months.
C．6 months or more.
D．1 month.
相关试题