It is the prevention of disease ______its successful treatment that has led to the rapid increase of the world' s population.

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• The purpose of a preventer as it is used on a conventional yard and stay cargo rig is to（）.

  A . allow greater than normal loads to be handled by the gear B . act as an inboard guy in the event the inboard guy parts during cargo handling C . assist the outboard guy in supporting stresses during cargo handling D . prevent the inboard guy from parting due to stresses during cargo handling

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• The device used for preventing the passage of flames into enclosed spaces is called a （）.

  A . flame relief valve B . flame stopper C . safety valve D . flame arrester

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• The purpose of the deck seal in an inert gas system is to prevent（）.

  A . flammable vapors from entering machinery space B . flue gas escaping to atmosphere C . inert gas escaping to atmosphere D . air entering inert gas system

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• MOVING OF AN ANCHOR OVER THE SEA BOTTOM INVOLUNTARILY BECAUSE IT IS NO LONGER PREVENTING THE MOVEMENT OF THE VESSEL defines（）.

  A . Dredging (of anchor) B . Dragging (of anchor) C . Weighing anchor D . Walking out anchor

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• A design modification of an anchor chain which prevents kinking is the（）.

  A . detachable link B . stud link C . Kenter link D . connection link

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• （）is used to prevent the entry of sea water to the machinery space.

  A . A special sealing gland B . Propeller C . Tailshaft D . Sterntube bearing

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• The emergency bilge suction or bilge （） is used to prevent flooding of the ship.

  A、injection valve B、relief valve C、discharge valve D、inlet filter

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• The valve that prevents water from backing out of the boiler into the feed line is the（）.

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• Moving of an anchor over the sea bottom involuntarily because it is no longer preventing the movement of the vessel defines（）.

  A . dredging ( of anchor ) B . dragging ( of anchor ) C . weighing anchor D . walking out anchor

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• Which of the following is the most effective technique to prevent source IPAddress spoofing？（）

  A .  policy based routing （PBR） B .  unicast reverse path forwarding （uRPF） C .  lock and keyACL D .  RFC 1918filtering E .  IP source routing

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• The spread of fire is prevented by（）.

  A . cooling surfaces adjacent to the fire B . leaving combustibles in the endangered area C . increasing the oxygen supply D . All of the above

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• Which set of commands is recommended to prevent the use of a hub in the access layer?（）

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• The ability of the governor to prevent fluctuations in engine speed is termed （）.

  A . sensitivity B . stability C . promptness D . speed droo

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• The spread of fire is NOT prevented by（）.

  A . shutting off the oxygen supply B . cooling surfaces adjacent to the fire C . removing combustibles from the endangered area D . removing smoke and toxic gases by ensuring adequate ventilatio

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• What is placed on the under side of an inflatable liferaft to help prevent it from being skidded by the wind or overturned?（）

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• It is believed that Shennong is the same person as Yan Di.

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• Never use any drug unless there is a good reason, especially for the woman who is expecting a baby. Ask the patient if he has had previous drug reactions: if he has, be careful. It is estimated that more than half of the adverse reactions that are reported would be prevented if this were done. Ask the patient ff he is already receiving other drugs.

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• The sying ’The devil is in the detils. ’ is used to imply tht______.Estoni’s new genThe sying ’The devil is in the detils. ’ is used to imply tht______.Estoni’s new genetic dt bnk hs immorl implictions B．while the overll ide is good, the detils of the genetic bnk’s workingsre flwed C．despite their efforts, the new lws my not prevent misuse of genetic dt D．it is inherently wrong to collect genetic dt

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• A support produces（）in a particular direction on its attached member if it prevents（）of the member in that direction, and it produces（）on the member if it prevents（）

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