色谱法中，以下英文缩写表示

CE

A:毛细管电泳法 B:气相色谱法 C:薄层色谱法 D:高效液相色谱法 E:毛细管电色谱

CE

AccordingtoMARPOL73/78，Toenablepipesofreceptionfacilitiestobeconnectedwiththeship’sdischargepipelineforresiduesfrommachinerybilgesandfromoilresidue（sludge）tanks，bothlinesshallbefittedwithastandarddischargeconnectionthequantityoftheBoltsandnutsforthestandarddischargeconnectionis（）.

A:5 B:4 C:6 D:8

Passage Three
In this game you are in a tank and a screen shows your outside view. You gain points by shooting enemy tanks, supertanks, missiles (火箭) and saucers (飞碟).
Experts gain scores of around 150,000 points at this game. To get a high score you have to destroy twenty tanks as quickly as possible. After this the supertanks, missiles and saucers appear. These are worth far more points than the ordinary tanks. (The number of tanks you have to destroy before the supertanks appear are various on different machines.)
Try to get near an enemy tank from the side or back so it cannot shoot at you. Then when you get close, turn to it, line it up in your sights and fire before it turns to shoot at you. If you miss or are too slow, quickly get away by moving out of the enemy’s line of life. You can then move around the enemy and come in from another side.
When a supertank appears, try to destroy it. Then wait safely behind an obstacle(障碍物) for a missile or a flying saucer. The cubes are useful objects to hide behind as you can fire over them without exposing yourself to danger. The missiles will fly straight at you, but they are difficult to hit. So do not shoot at them until they are quite close. The saucers are much easier to hit, but do not chase (追逐 ) them as you will be open to shoot from enemy’s tanks.

A:a computer game B:an underwater game C:how to use modem weapons on your enemies D:an army training exercise

Regarding the use of GPS, which one of the followings is incorrect?

A:GPS is the most accurate globalsystem today. B:Its use is still under the USDepartment of Defence's control C:DGPS is more accurate than GPS D:GPS can provide a real-time positionunder any condition

Where de we find information regarding mechanical ventilation in cargo tanks?

A:In MARPOL B:In the ISM Code C:In SOLAS D:In the Safety Manual

Where tanks are arranged for either oil or ballast, _____ must be fitted in the pipeline.

A:a change-over chest B:a head tank C:a emergency bilge pump D:an air cooler

The simplest method to use for determining if a centrifugal pump is operating as designed, is to _____.

A:closely observe the pump discharge temperature B:close off the discharge valve, and watch for a rise in pressure C:momentarily close off the suction valve, and watch for a rise in pressure D:use a clamp on ammeter and compare the readings to past records

To prevent the overflow of cargo tanks due to expansion, you should top off _____.

A:to the bottom of the expansion trunk B:to within 1% to 3% of its capacity C:to within 1 to 3 inches of its capacity D:1 to 3 inches from top of the vent pipe

During fueling operations, which of the listed precautions should be taken when topping off fuel tanks?

A:Reduce the pumping rate by closing the deck filling valve B:Close all overflow valves C:Place 5 gallon containers under all flange connections in the fuel line D:Reduce the pumping rate and sound tanks frequently as the level rises