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Free Radio Pratique will be granted by the Port Health Office in the following case () .
A . Vessel with a case or suspected case of infectious disease on board
B . Vessel with a dead body on board
C . Vessel which has visited plague-infected ports during the current voyage
D . Cargo vessel which hasn't called at any plague infected ports during the current voyage and on which there is not any case of infectious disease,or any dead body
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In its simplest form the pressure reducing valve is opened or closed by () which is balanced by the downstream pressure acting on a diaphragm.
A . adjusting a nut
B . a pre-tensioned spring
C . any spring
D . upstream pressure
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The lower end of each piston rod is reduced in diameter to fit a bore in (), this being secured to the piston rod by a nut.
A . the crank-web
B . the connecting rod
C . the main bearing
D . the cross-head
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The lower end of each piston rod is reduced in diameter to fit a bore in the (), this being secured to the piston rod by a nut.
A . piston gudgeon pin
B . piston skirt
C . cross-head
D . cross-head pi
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A vessel constrained by her draught shall,when risk of collision with another vessel in a crossing or head-on situation exists,().
A . apply the relevant Steering and Sailing Rules as a power-driven vessel
B . apply the relevant Steering and Sailing Rules as a Sailing vessel
C . apply the relevant Steering and Sailing Rules as a vessel not under command
D . apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operatio
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Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()
A . STP
B . VTP
C . GVRP
D . SNMP
E . DHCP
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setting redundant components in subsystem to handle with the risks brought by the defaults of original components,what kind of risk response strategy is this?()
A . A、risk avoidance
B . B、risk acceptance
C . C、risk mitigation
D . D、contingency plan
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The air supplied to the cylinders by a turbocharger is often reduced in volume by a/an ()
A . air compressor
B . diffuser
C . after-cooler
D . ventilator
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Lubricating oil viscosity in an operating diesel engine can be reduced by()
A . increasing cooling water flow
B . increasing lube oil flow
C . dilution by fuel oil
D . adding SAE 70 oil
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The lower end of each piston rod is reduced in diameter to fit a bore in the cross-head, this being secured to the piston rod by ().
A . a bolt
B . a cap
C . a disc
D . a nut
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Diesel engine exhaust noise can be reduced in an exhaust muffler by ()
A . changing the direction of exhaust gas flow
B . increasing the exhaust gas velocity
C . changing the exhaust gas weight
D . increasing the exhaust gas static pressure
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()the visibility to reduce to one mile by heavy rain,it()be impossible to rescue the vessel in distress.
A . Was/would
B . Were/would
C . Is/will
D . Is/is to
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Fighting a rig fire in a watertight compartment with hoses could reduce the stability of the rig by().
A . progressive downflooding
B . reducing the level of drill water from the storage tanks
C . causing a list due to the water in the compartment
D . reducing the KG to minimum allowable
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In a study published by __________, some researchers found thateating too much red meat was linked to an increased risk of mortality.
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Ocean marine cargo insurance does not cover expenses incurred by anyone in reducing the loss of the subject matter insured.
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A U.S. importer scheduled to make a payment of £100 000 in three months can hedge his foreign exchange risk by______.
A.purchasing $100 000 in the spot market for deli very in three months
B.selling £100 000 in the spot market for delivery in three months
C.purchasing £100 000 in the forward market for delivery in three months
D.selling £100 000 in the forward market for delivery in three months
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The risks covered in FPA, WPA and All Risks in PICC Ocean Marine Cargo Clauses are not the same but all of them cover loss or damage caused by the intentional act of the insured.( )
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听力原文:Exercise appears to be most effective in reducing risk of death from heart disease or respiratory problems, but it also has an effect on other health conditions. The more exercise, the better, but even moderate exercise lowers death risk.
(53)
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The rate of population growth is fastest in underdeveloped countries. In these countries a high birthrate is accompanied by a lowered death rate thanks to improved standards of public health. Ideally it should be possible to counter balance the effect of a reduced death rate by all increased use of family planning. In practice, however, population control is a complex matter. Throughout history people have determined the size of their families according to the cultural values of their societies.
Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the development of facilities such as sports, roads and railways, which are not likely to be built unless there is a big demand to justify them. Similarly, it can be argued that the public costs of society will not be so heavy to each individual if they are shared among the members of a large population.
One of the difficulties in implementing birth control lies in the fact that the official attitudes to population growth vary from country to country. In underdeveloped countries where a large population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of government to place a limit on the birthrate. In a well-developed society the problem may be more complex. A declining birthrate may lead to unemployment because it results in a shrinking market. Cities with a declining population may have to face the prospect of a shrinking tax base and a fall in land values. If there are fewer children going to school, teachers may be thrown out of work. When the pressure of population on housing declines, prices also decline and the building industry is weakened. Faced with considerations such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable or in decline.
The writer suggests that policy makers should consider cultural values ______.
A.in carrying out family planning
B.in producing birth control drugs
C.in improving public health standards
D.in introducing birth control techniques
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What are the steps taken by'the Department of Health of UK with the risk of the virus spreading to human population?
A.The Department of Health required Civil Contingency Secretariat to publish documents for the pandemic preparedness.
B.The Department of Health required the UK national committee to co-work with hospital trusts and local authorities.
C.The Department of Health required Civil Contingency Secretariat to make a pandemic plan as soon as possible.
D.The Department of Health requires every hospital to store Tamiflu, the precious flu vaccine.
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You could actually decrease your risk and increase your return by investing in __________.
A、More bonds and less stocks
B、More bonds and more stocks
C、Less bonds and less stocks
D、Less bonds and more stocks
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Which of the following terms in a bond issue most likely helps to reduce credit risk?
A、Term maturity structure
B、Sinking fund arrangement
C、Floating rate note
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By my delight, I saw my aunt in good health.()
是
否
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A government reduces spending by $50 million. The tax rate is 30%, and consumers exhibit a marginal propensity to consume of 80%. The change in aggregate demand caused by the change in government spen
A.-$66 million.
B.-$114 million.
C.-$250 million.