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Permission is requested to pump out about 200 tons of clean sea ballast water for ______ purposes．
A.safe manning
B.trimming
C.avoiding collision
D.preventing pollution
参考答案
更多 “ Permission is requested to pump out about 200 tons of clean sea ballast water for ______ purposes．A.safe manningB.trimmingC.avoiding collisionD.preventing pollution ” 相关考题
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共用题干
第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.According to the passage,pollution of the air and water is caused by__________.A:thousands of tons of gases coming out of the exhausts of motor vehiclesB:the changes of the environment that technology has brought to manC:the increasing amount of oil that has been producedD:industrial wastes discharged into rivers
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After leaving the port, we used （）to clean the empty holds and decks.A、fresh waterB、sea waterC、both A and BD、ballast water
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淡水注入管（）A、fresh water filling pipeB、sea water filling pipeC、ballast water filling pipeD、bilge water filling pipe
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单选题Permission is requested to pump out about 200 tons of clean sea ballast water for （） purposes．A
safe manningB
trimmingC
avoiding collisionD
preventing pollution
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单选题An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.A
an oil content meterB
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单选题Every existing product carriers of 40000 tons deadweight and above shall be provided with segregated ballast tanks and shall comply with the specified requirements，or，alternatively，operate with（）in accordance with the convention.A
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单选题（） system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel.A
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propulsion engines with bores exceeding 200 mm are to be fitted with a means to display the cooling water temperature of each cylinderC
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at Friday soonest
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单选题When（）clean ballast water from any vessel，an application shall be made to Harbor Authorities for approval.A
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recirclingC
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单选题Permission is kindly requested（）the ballast water.A
pump outB
to pump outC
pumping outD
be pumped out
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putC
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单选题Permission is kindly （） about 1000 tons of clean sea water ballast，as and when required for trimming purposes．A
requested to pump outB
requested pumping outC
requesting to pump outD
requesting pumping out
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