单项选择题

A．Because the moon’s composition is different from Earth’s composition.
B．Because the moon has almost no iron.
C．Because the moon and the Earth are of similar composition.
D．Because the Earth’s gravitational force is net strong enough.
<上一题 目录 下一题>
热门 试题

单项选择题
A．250,000.B．1 million.C．20 million.D．50 million.
A．250,000.
B．1 million.
C．20 million.
D．50 million.
单项选择题
A．Because he himself chose to be single all his life.B．Because he had a prejudice against women.C．Because he could not bear the roman between couples.D．Because single men were better soldiers compared with married ones.
A．Because he himself chose to be single all his life.
B．Because he had a prejudice against women.
C．Because he could not bear the roman between couples.
D．Because single men were better soldiers compared with married ones.
相关试题