单项选择题
A.50;一 B.25;一 C.50;二 D.25;二
A.静坐运动 B.扒粪运动 C.大字报运动 D.公关职业竞聘运动
A.decrease the rudder angle B.move the rudder slowly in the direction of the most recent rudder command C.bring the rudder amidships D.steer the course which is your present heading
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