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单选题
A
How destructive tidal waves are.
B
The cause of tidal waves.
C
What a true tide is.
D
Why there is seaquake.
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参考解析
解析：
[考点]主旨题。文章通篇都是在讲海啸的形成原理，故文章的主题为B项。
[考点]主旨题。文章通篇都是在讲海啸的形成原理，故文章的主题为B项。
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单选题The height of tide is the （）.A
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difference between the depth of the water and the area's tidal datumC
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difference between the depth of the water at high tide and the depth of the water at low tide
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Admiralty Tidal Stream AtlasesC
Admiralty Manual of TidesD
Admiralty Tidal Handbooks
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range of tideB
height of tideC
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predicted in Tidal Current TablesB
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generally constantD
generally too weak to be of concern
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Ocean Passages for the WorldB
Admiralty Tidal Stream AtlasesC
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vertical distance from the tidal datum to the ocean bottom plus the height of the tideB
vertical distance from the tidal datum to the ocean bottomC
average height of water over a specified period of timeD
average height of all low waters at a place
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Ocean Passages for the WorldB
Admiralty Tidal Stream AtlasesC
Admiralty Manual of TidesD
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still water levelB
wave crestC
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wave crest plus the charted water depth and tidal correction and storm surge
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