刹把在（）应能刹住。在载荷条件下不得调节刹带。

A. 正确
B. 错误

A. aid turning the ship
B. obtain a fine bearing
C. increase ship swings to wind or tide
D. lighten the stress of anchor chai

A. 平键
B. 楔键
C. 花键
D. 半圆键