27. 题干： 当保向保速的船发觉本船不论何种原因逼近到单凭让路船的行动不能避免碰撞时，也应采取的行动是：

Mooring lines both ______ were let go.

Before your vessel gets alongside, every one must be ______ immediately.

The fire and boat drills for a cargo ship should be ______ once a month under normal conditions.

The ship has a speed of more than 14 ______ at 120 ______.

It takes about 12 seconds to reverse ______ full speed ahead ______ full speed astern．

In anchoring orders, walk back the chain means ______.

Hard right rudder means ______．

You are getting closer to the vessel ______，which is on the same course as you．

______？Two degree on starboard．

If two mooring lines are to be placed on the same bollard, which method is best?