填空题About one-third of the pollutants entering the sea come from atmospheric inputs.____

填空题
About one-third of the pollutants entering the sea come from atmospheric inputs.____

参考解析

解析:
由题干中“one-third of the pollutants”定位至B段。本句指出,进入海洋的污染物中,有33%来自大气;“三分之一”与原文中的“33 percent”所指的比率相同。故匹配段落为B段。

相关考题:

The purpose of the official inquiry is to () the true facts leading to the loss of the ship at sea. A.come atB.come forC.come intoD.come over

Statistics show that there are about 30% words in English come from French.() 此题为判断题(对,错)。

What is this report mainly about?A.Phone inquires about hotel bookings for the 2008 Olympic Games.B.Beijing Hotel is one of the most top hotels in the capital.C.Beijing will host the 2008 Olympic Games.D.Visitors from all over the world will come to China for the games.

27. From the passage we know that fresh water doesn't come from________ .A.riversB.lakesC.undergroundD.the sea

The river ________ through three counties before entering the sea just south of here. A. flowingB. flowC. flewD. flowed

8. He usually come hereA. by shipsB.by a shipC. by seaD. by the sea

Entering from sea,a daymark on the port side of the channel would be indicated on a chart by a ______.A.red triangle with the letter RB.white triangle with the letters RGC.green square with the letter GD.white square with the letters GR

To ______ Admiralty Charts 438,latitudes taken from this chart should be increased by about 5 seconds.A.convert toB.come toC.look atD.agree with

When backing down with sternway,the pivot point of a vessel is ______.A.about one-quarter of the vessel's length from the sternB.at the bowC.about one-third of the vessel's length from the bowD.aft of the propellers

A mercurial barometer at sea is subject to rapid variations in height ("pumping") due to the pitch and roll of the vessel. To avoid this error,measurements of atmospheric pressure at sea are usually measured with a(n) ______.A.syphon barometerB.cistern barometerC.aneroid barometerD.fortin barometer

共用题干1.Certainly no creature in the sea is odder than the common sea cucumber. All living creatures,especially human beings,have their peculiarities,but everything about the little sea cucumber seems unusual.What else can be said about a bizarre animal that,among other eccentricities, eats mud,feeds almost continuously day and night but can live without eating for long periods,and can be poisonous but is considered supremely edible by gourmets?2.For some fifty million years,despite all its eccentricities,the sea cucumber has subsisted on its diet of mud.It is adaptable enough to live attached to rocks by its tube feet,under rocks in shallow water,or on the surface of mud flats.Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.3.Sea cucumbers come in a variety of colors,ranging from black to reddish brown to sand color and nearly white.One form even has vivid purple tentacles.Usually the creatures are cucumber shaped一hence their name一and because they are typically rock inhabitants,this shape,combined with flexibility,enables them to squeeze into crevices where they are safe from predators and ocean currents.4.Although they have voracious appetites,eating day and night,sea cucumbers have the capacity to become quiescent and live at a low metabolic rate feeding sparingly or not at all for long periods,so that the marine organisms that provide their food have a chance to multiply.If it were not for this faculty,they would devour all the food available in a short time and would probably starve themselves out of existence.5.But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs,when attacked,it squirts all its internal organs into water. It also casts off attached structures such as tentacles.The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched;it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.According to the passage,of all the sea creatures,sea cucumbers are the most______.A:extinctB:bizarreC:interestingD:inactive E:greedyF: reproduce

共用题干1.Certainly no creature in the sea is odder than the common sea cucumber. All living creatures,especially human beings,have their peculiarities,but everything about the little sea cucumber seems unusual.What else can be said about a bizarre animal that,among other eccentricities, eats mud,feeds almost continuously day and night but can live without eating for long periods,and can be poisonous but is considered supremely edible by gourmets?2.For some fifty million years,despite all its eccentricities,the sea cucumber has subsisted on its diet of mud.It is adaptable enough to live attached to rocks by its tube feet,under rocks in shallow water,or on the surface of mud flats.Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.3.Sea cucumbers come in a variety of colors,ranging from black to reddish brown to sand color and nearly white.One form even has vivid purple tentacles.Usually the creatures are cucumber shaped一hence their name一and because they are typically rock inhabitants,this shape,combined with flexibility,enables them to squeeze into crevices where they are safe from predators and ocean currents.4.Although they have voracious appetites,eating day and night,sea cucumbers have the capacity to become quiescent and live at a low metabolic rate feeding sparingly or not at all for long periods,so that the marine organisms that provide their food have a chance to multiply.If it were not for this faculty,they would devour all the food available in a short time and would probably starve themselves out of existence.5.But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs,when attacked,it squirts all its internal organs into water. It also casts off attached structures such as tentacles.The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched;it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.Paragraph 4______A:How Sea Cucumbers Defend Themselves.B:Places Where Sea Cucumbers Live.C:Eccentricities of Sea Cucumbers.D:Favorite Food of Sea Cucumbers.E:Eating Habits of Sea Cucumbers.F:Color and Shape of Sea Cucumbers.

共用题干1.Certainly no creature in the sea is odder than the common sea cucumber. All living creatures,especially human beings,have their peculiarities,but everything about the little sea cucumber seems unusual.What else can be said about a bizarre animal that,among other eccentricities, eats mud,feeds almost continuously day and night but can live without eating for long periods,and can be poisonous but is considered supremely edible by gourmets?2.For some fifty million years,despite all its eccentricities,the sea cucumber has subsisted on its diet of mud.It is adaptable enough to live attached to rocks by its tube feet,under rocks in shallow water,or on the surface of mud flats.Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.3.Sea cucumbers come in a variety of colors,ranging from black to reddish brown to sand color and nearly white.One form even has vivid purple tentacles.Usually the creatures are cucumber shaped一hence their name一and because they are typically rock inhabitants,this shape,combined with flexibility,enables them to squeeze into crevices where they are safe from predators and ocean currents.4.Although they have voracious appetites,eating day and night,sea cucumbers have the capacity to become quiescent and live at a low metabolic rate feeding sparingly or not at all for long periods,so that the marine organisms that provide their food have a chance to multiply.If it were not for this faculty,they would devour all the food available in a short time and would probably starve themselves out of existence.5.But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs,when attacked,it squirts all its internal organs into water. It also casts off attached structures such as tentacles.The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched;it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.When attacked,sea cucumbers can cast off certain organs and______. A:extinctB:bizarreC:interestingD:inactive E:greedyF: reproduce

共用题干Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us feel strange and no answer for the fact has yet been found.Such a fact is the existence of salt in the oceans. How did it get there?We simply do not know how the salt got into the ocean!We do know,of course,that salt is water-soluble,and so passes into the oceans with rainwater.The salt of the earth's surface is constantly being dissolved(溶解)and is passing into the ocean.But we do not know whether this can explain the huge quantity of salt in oceans.If all the oceans were dried up,enough salt would be left to build a wall 180 miles high and a mile thick. Such a wall would reach once around the world at the Equator(赤道)!The common salt that we all use is produced from seawater or the water of salt lakes, from salt springs(源泉)and from deposits of rock salt. The concentration(浓度)of salt in seawater ranges from about three percent to three-and-one-half percent. The Dead Sea, which covers an area of about 340 square miles,contains about 11,600,000,000 tons of salt!On the average, a gallon(加仑)of seawater contains about a quarter of a pound of salt.The beds of rock salt that are found in various parts of the world were all originally formed by the evaporation(蒸发)of seawater millions of years ago. It is believed that the thick rock-salt deposits were formed after about nine-tenth of theY volume of seawater had been evaporated.Most commercial salt is obtained from rock salt.The usual method is to drill wells(井) down to the salt beds. Pure water is pumped down(抽进去)through a pipe. The water dissolves the salt and it is forced through another pipe up to the surface.The percentage of salt content in the Red Sea is higher than that in the Dead Sea.A:Right B:Wrong C:Not mentioned

单选题The text suggests which of the following about air pollution?AFurther attempts to reduce emissions from gasoline-fueled vehicles will not help lower urban air-pollution levels.BAttempts to reduce the pollutants that an individual gasoline-fueled vehicle emits have been largely unsuccessful.CFew serious attempts have been made to reduce the amount of pollutants emitted by gasoline-fueled vehicles.DPollutants emitted by gasoline-fueled vehicles are not the most critical source of urban air pollution.

单选题Strainers are commonly used in hydraulic systems to ().Aprotect the pump from fine soluble contaminantsBprevent solid particles from entering the pumpCprevent solid particles from entering the filterDprotect the directional control valves

单选题Fuel oil tank vents are fitted with a screen which will stop().Aoil from flowing out of the tank ventBair from entering the tank ventCvapors from leaving the tank ventDflames on deck from entering the tank vent

单选题The starting air entering the cylinder begins when the piston()Ahas nearly come to the TDCBhas just past the TDCChas nearly come to the BDCDhas just past the BDC

单选题Entering from sea,a daymark on the port side of the channel would be indicated on a chart by a().Ared triangle with the letter RBwhite triangle with the letters RGCgreen square with the letter GDwhite square with the letter GR

填空题When we arrived, there was a smell of cooking (come) ____ from the kitchen.

单选题A microbarograph is a precision instrument that provides a().Acharted record of atmospheric temperature over timeBcharted record of atmospheric pressure over timeCgraphic record of combustible gases measured in an atmosphereDgraphic record of vapor pressure from a flammable/combustible liquid

单选题A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error,measurements of atmospheric pressure at sea are usually measured with a(n)().Asyphon barometerBcistern barometerCaneroid barometerDfortin barometer

单选题He has come to work for a local newspaper about ten years ago, when he graduated from Peking University.Ahas comeBforCwhenDfrom

单选题An oil tanker,except as provided for otherwise,might discharge certain amount at certain rate of oil or oily mixtures into sea when().Ashe is not within a special areaBshe is within a special areaCshe has just departured from a special areaDshe is about to enter a special area

单选题Releasing oil from the sea anchor of a lifeboat may().Akeep the propeller from being fouledBincrease propeller speedChelp calm the waves in the vicinity of the craftDincrease the holding power of the sea anchor

单选题Huff raised the house 2.7 meters off the ground on timber pilings in order to _____.Awithstand beak winds of about 200 km/hrBanchor stronger pilings deep in the sandCbreak huge sea waves into smaller onesDprevent water from rushing into the house.

单选题I suppose that when I come back from sea in one year’s time all these old houses()down.Awill have been pulledBwill be pullingCwill have pulledDwill be pulled