单项选择题
The first the Second Mate knew of the fire was the sounding of the emergency alarm，which had been（）from the engine room.
A.acted B.activated C.actioned D.enactioned
单项选择题 The expression DROP ANCHOR means（）.
单项选择题 The crew was unable to（）access to the engine room due to the extreme heat.
单项选择题 The（）accident was caused by your ship.
