In twin-screw engine installations while going ahead, maneuvering qualities are most effective when the tops of the propeller blades both turn______.(1.0)
A.to starboard B.outboard from the center C.to port D.inboard toward the center正确答案B
In twin-screw engine installations while going ahead, maneuvering qualities are most effective when the tops of the propeller blades both turn______.(1.0)
A.to starboard B.outboard from the center C.to port D.inboard toward the center正确答案B
