单项选择题

A．Artificial hearts.
B．Telescopes.
C．Microscopes.
D．Radio telescopes.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Man is also a kind of animal.B．There have been men for more than a million years.C．Like any other animals, man slowly changed through time.D．There were men a few million years ago.
A．Man is also a kind of animal.
B．There have been men for more than a million years.
C．Like any other animals, man slowly changed through time.
D．There were men a few million years ago.
单项选择题
A．That the man will not be able to sleep.B．That someone will enter the back door while the man is sleeping.C．That the lock on the door will break.D．That the man will not be rifle to come back.
A．That the man will not be able to sleep.
B．That someone will enter the back door while the man is sleeping.
C．That the lock on the door will break.
D．That the man will not be rifle to come back.
相关试题