单项选择题

This passage is probably ______.

A．a newspaper advertisement
B．a chapter of a novel
C．an excerpt from a textbook
D．a scientific report of new findings
<上一题 目录 下一题>
热门 试题

单项选择题
According to the second paragraph, the formation of the Atlantic Ocean is the example of ______.
A．spreading contacts
B．the influence of volcanic eruptions
C．converging contacts
D．transform contacts
单项选择题
The Earth's crust ______.
A．can be classified into two types
B．is formed along the margins of the plates
C．consists of semi-molten rocks
D．is about 70 to 100 kilometers thick
相关试题