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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