单选题The height of a wave is the vertical distance().Afrom the still water plane to the crestBfrom the still water plane to the troughCfrom crest to troughDbetween water levels at one-quarter of the wave's length

单选题
The height of a wave is the vertical distance().
A

from the still water plane to the crest

B

from the still water plane to the trough

C

from crest to trough

D

between water levels at one-quarter of the wave's length


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