问题:
A . lift oars to vertical position,trim blades fore and aft with handles resting on the thwarts
B . complete the stroke,come to Oars,raise the oars smartly to the vertical,rest handles on footings and trim blades fore and aft
C . place oars in row locks directly from the boated position or from Stand by oars position
D . complete the stroke (when rowing in ahead motion),raise the oars with crook of elbow to about 30 degrees,swing blades forward
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