单项选择题

The main difference between the Earth's atmosphere and the simulated one is ______.

A．their size.
B．their content.
C．their height.
D．their density.
<上一题 目录 下一题>
热门 试题

单项选择题
As to global warming in the next century, climate scientists' answer is ______.
A．ambivalent.
B．inexplicit.
C．negative.
D．affirmative.
单项选择题
All of the following can be inferred from the passage EXCEPT that ______.
A．Kapask and Julie had extra marital affairs.
B．Kapask's parents may not forgive him.
C．Julie lied to Kapask about her whereabouts.
D．Julie and Kapask were blessed by his friends.
相关试题