单选题A sweep oar is an oar that is（）.Agenerally shorter than the others and is used to steer withBis longer than the others and is used as the stroke oarCis raised in the bow of the boat for the steersman to steer byDlonger than the others used for steering
单选题
A sweep oar is an oar that is（）.
A
generally shorter than the others and is used to steer with
B
is longer than the others and is used as the stroke oar
C
is raised in the bow of the boat for the steersman to steer by
D
longer than the others used for steering
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