Everyone aboard the plane is ____the seat belt.A．should wear

A . bilge pumping capacity B . reserve buoyancy C . level attitude D . instability

A . height of the center of gravity A.LCG B . vertical moment C . righting moment D . inclining moment

A . electromagnetic field, revolving armature type B . electromagnetic field, oscillatory armature type C . armature, oscillatory electromagnet field type D . armature, rotating electromagnetic field type

A . disappearing B . disappeared C . diving D . dived

A . More than six short blasts and one long blast on the whistle B . Continuous blast of the ships whistle for a period of not less than 10 seconds supplemented by the same signal on the general alarm C . Three short blasts of the whistle supplemented by the same signal on the general alarm D . More than six short blasts and one long blast on the whistle supplemented by the same signal on the general alarm

A . hauling in on the anchor line as you would any anchor B . getting all hands to assist C . its trip line D . cutting the line，as you cannot haul it back i

A . lower personnel down by a transfer basket B . lower food and water to personnel in a life raft C . lower the life raft down with its full complement D . move equipment around the deck

A . allow sufficient oxygen in the tank to sustain life B . prevent outside air from entering the tank C . provide more discharge pressure D . comply with pollution regulatio

A . Any internal transfer of oil cargo during a voyage B . The discharge overboard in port or at sea of any bilge water accumulated in machinery spaces C . The loading or unloading of any or all oil cargo D . All of the above

A . It allows for rotation of the hook in the single mode B . It is required to“twin-up”30-ton pedestal cranes C . It is used to pick up light loads D . It is used to rigidly connect two crane

A . bilge pumping capacity B . reserve buoyancy C . level attitude D . instability

A . Soda acid B . Carbon dioxide C . Dry chemical D . Cartridge-operated Foam

A . allow sufficient oxygen in the tank to sustain life B . prevent outside air from entering the tank C . provide increase in cargo discharge pressure D . comply with double hull pollution prevention regulatio

(27) A．The taxi must have been waiting for us all this time. B．Let's look for a taxi to go there immediately. C．To avoid being late, we should have called for a taxi earlier. D．The taxi will come as soon as we call for it.

A.vertical moments B.transverse position of the center of gravity C.inclining moments D.righting moments

Marshall was actually in a hiding-place. Using his mobile (移动的) phone, he got himself connected with the White House. He told the Vice President not to talk with the terrorists in spite :of the killing. At the same time he killed one of the terrorists and at last helped most of the hostages (人质) to escape using parachutes (something for making people fall slowly and safely from a plane). However, Ivan was still holding his wife and daughter. Rather than see either killed , Moscow to set General Radek free. He and Ivan fought it out and at last Ivan was killed. Marshall rang Moscow just in time to prevent Raded getting away. He had his family succeeded in escaping at last but the plane crashed into the sea. James Marshall didn't know what had happened to the plane until ______. A．he boarded Air Force One B．the six Russian journalists interviewed him C．the plane was hijacked D．he escaped in a special emergency pod

此题为判断题(对，错)。