单选题A bluff bar is a bar().Aextending out from a bluff alongside the riverBthat tends to give a false indication of its positionCthat has a sharp drop off into deep waterDthat is perpendicular to the current
单选题
A bluff bar is a bar().
A
extending out from a bluff alongside the river
B
that tends to give a false indication of its position
C
that has a sharp drop off into deep water
D
that is perpendicular to the current
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