赞题库-背景图

单项选择题

As used in the fifth sentence of the fourth paragraph, the word "essentially" means ______.

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

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热门试题

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

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 may occur around fault areas
D．California will break into pieces by an eventual earthquake