A list signal of one white light indicates that the vessel is （）.

The cubic inch(or liter) displacement of a cylinder is determined by the diameter of the piston and the （）

On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.

How is the Master or operator of a vessel required to keep the crew informed of the regulations concerning the discharging of garbage overboard?（）.

______ is the address of a variable or a variable in which the address of another variable is stored.

______is the address of.a variable or a variable in which the address of another variable is stored.

Where must the 0mster or person in charge of a ship record the date of each test of emergency lighting and power systems and the condition and performance of the equipment?（）

Where must the master or person in charge of a ship record the date of each test of emergency lighting and power systems and the condition and performance of the equipment（）.

The international number，location and/or name，geographical co-ordinates，characteristics and intensity，elevation in metres，range in sea miles and description of structure of a light can be found in（）.

Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.

（）refers to a word or expression that is prohibited by the “polite” society from general use.

●A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.