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单项选择题

The New Madrid fault is_____.

A．a horizontal fault
B．a vertical fault
C．a more serious fault than the San Andreas fault
D．responsible for forming the Mississippi River

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单项选择题We may conclude from the passage that_____.

A．it is probably as dangerous to live in Missouri as in California
B．the New Madrid fault will eventually develop a mountain range in Missouri
C．California will become an island in future
D．A big earthquake will occur to California soon

单项选择题As used in the first sentence of the fourth paragraph, the word essentially means_____.

A．greatly
B．extremely
C．basically
D．necessarily

单项选择题This passage implies that_____.

A．horizontal faults are more dangerous than vertical faults
B．Vertical faults are more dangerous than horizontal faults
C．Earthquakes occur only around fault areas
D．California will break into pieces by an eventual earthquake

单项选择题This passage is mainly about_____.

A．the New Madrid fault in Missouri
B．the San Andreas and the New Madrid faults
C．the causes of faults
D．current scientific knowledge about faults

单项选择题The main idea of the article is about_____.

A．defense planning after the Cold War
B．defense planners' problems
C．small conflicts in the world
D．potential warfare