1. 题干： 了望条款的适用范围是：

____ sail on regular routes and on a fixed timetable.

The carpenter and the bosun also belong to the ___.

How many departments are there on board?They are ___.

You can ___his number in the telephone directory.

The depth from waterline to vessel＇s bottom is called ___.

The bosun is good ___ seamanship.

___ can help ships navigate in poor visibility or near land.

A fire extinguisher is used for ___ fires.

Water is used to put out ____.

___ must be kept away from dry cargoes.