When approaching a fire from win ward, you should shield firefighters from the fire by using（）

A . use different fire hose pressures B . use fire hoses of different sizes C . not attack the fire from opposite sides D . not wear protective clothing

A . Carbon dioxide is corrosive when exposed to fire B . Carbon dioxide should be applied slowly to a large engine room fire C . Its total cooling effect is far greater than water D . Its smothering effect is excellent for class B fire

A . horizontally and directly abeam of your vessel B . at the vessel whose attention you want to attract C . into the wind D . at greater than 60 degrees above the horizo

A . first to the bottom of the flaming area，sweeping from side to side，and following the flames upward B . in a circular motion from the middle of the bulkhead outward C . to the top of the flaming area，sweeping from side to side，and working toward the bottom D . in an up-and-down motion from one side of the bulkhead to the other

A . astern and the victim just off the bow B . ahead and the victim just off the bow C . just off the bow and the victim to windward D . just off the bow and the victim to leeward

A . After each use B . When the air temperature exceeds 90°F C . Every 6 months D . Every 12 month

A . One man report the fire, and the other two men fight the fire B . One man report the fire, one man fight the fire, and one man evacuate and secure the area C . One man report the fire, one man fight the fire, and one man act as a safety observer D . All three men fight the fire and report it immediately after it is extinguished

A . Blanket the cargo spill with foam B . Prevent the spread of fire with a foam dam C . Apply CO on burning fuel at its source D . Shut off the transfer of cargo

A . fuel control rack had admitted excessive fuel B . engine speed does not match the fuel rack setting C . engine has failed to reach its firing speed D . starter pinion and ring gear contact is not correct

A . light characteristic B . color of the uppermost band C . shape of an unlighted buoy D . color of the light

A . look for a CO extinguisher B . use a soda acid extinguisher C . shut off the fuel supply D . smother the fire with rag

A . air supply is shut off B . fuel supply is shut off C . water supply is shut off D . safety valve lift

A . straight overhead B . at the vessel whose attention you are trying to get C . into the wind D . about 60 degrees above the horizo

A .  Smaller companies are at less risk than larger enterprises， so their security needs are not as great. B .  Business strategy should directly relate to the security policy and budget. C .  The designated security expert should report to the IT department， since that is where thesolution will be implemented. D .  Security should be a continuous process. E .  Security solutions should come from multiple vendors to make it easier to coordinate security events from the point of origin.

A . smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance B . a lifeline and explosion proof flash light are used C . all smoke and toxic fumes are removed and an adequate oxygen supply is present D . overhaul has been completed to remove any possible source of re-ignitio

A . tie up to the rescue vessel B . transfer only those personnel who are not seasick C . wait for calmer weather before transferring personnel D . transfer all personnel immediately

A . secure the electric supply B . ventilate area to remove smoke C . start the fire pump and lead out hose D . apply foam

A . fire hose might be damaged by cargo operations B . vessel is in port C . fire-main system is not charged D . fire pumps are used for purposes other than supplying water to the fire mai

A . Length of the discharge pipe B . Height of the discharge pipe C . Difference between the discharge and suction pressures D . Sum of discharge and suction pressure

A、generally steady bearing and decreasing range B、generally steady range and increasing bearing C、 increasing range and bearing D、decreasing bearing only

A . Three white lights in a vertical line are lit B . A red light starts to flash at about 60 times a minute C . A yellow light is illuminated on the bridge pier D . There is a range of green lights under the lift spa

A . combustible material B . ignition source C . oxygen D . A and B and C

A . 10 minutes B . 1 minute C . 1 hour D . 3 minute

听力原文： Thirty-four patients died and two were injured early yesterday when a fire broke out in a 15sychiatric hospital in the town of Nonsan. A police spokesman told reporters there were 41 patients in the newly-constructed Seoul Neotrological Hospital when the fire broke out around 2:00 a. m. local time. It is said that rescue efforts were hampered because of some of the doors were locked for the night and some of the patients were bound to their beds. Policemen, firefighters and volunteers managed to get the fire under control within 20 minutes. It is said that police were investigating the cause of the blazes. The fire caused ______ casualties. A．two B．thirty-four C．thirty-six D．forty-one