流线型舵的极限舵角为（）。
A.32°
B.35°
C.40°
D.45°
参考答案：A
—I had the computers repaired yesterday.
—How much did they _________ for that?
A．cost
B．spend
C．take
D．charge
内河船舶上的主、辅机及轴系的布置，应能保证船舶处于横倾（），纵倾（）时，仍能正常工作。
A.7°/10°
B.10°/5°
C.10°/15°
D.15°/10°
