网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
单选题
What will happen with the freshening of waters?
A

Sea-ice formation will reduce,

B

Antarctic ice shelves will melt.

C

Rainfall will increase,

D

The circulation of deep waters will reduce.


参考答案

参考解析
解析:
根据录音可知,越来越多的北极径流和降水(Arctic runoff and rainfall),南极冰架的融化(melt of Antarctic ice shelves)和海冰形成的减少都在导致海水淡化。海水淡化将会减缓北大西洋和南部海洋的热盐环流,同时减弱深水水域的环流(This will slow the thermohaline circulations of the North Atlantic and Southern Oceans and reduce the circulation of deep waters.),A、B和C项的内容都已经发生了,不应该用将来时,所以只有D项正确。
更多 “单选题What will happen with the freshening of waters?A Sea-ice formation will reduce,B Antarctic ice shelves will melt.C Rainfall will increase,D The circulation of deep waters will reduce.” 相关考题
考题 Could I have three waters, please?()

考题 he is extremely shy and withdrawn, though it may be that _______. A、still waters run very deepB、a wise plays a foolC、a wise man plays footballD、deep waters run no wave

考题 An increase in the heat load to a refrigeration system will cause ______.A.the suction pressure to decreaseB.the suction temperature to increaseC.increased ice formation on the evaporator coilD.excessive short cycling of the compressor

考题 What will NOT be found on the Certificate of Inspection of an ocean going tanker?A.Manning requirementsB.Minimum freeboard permittedC.Grade(s) of cargoes that the vessel may carryD.Waters upon which the vessel may be operated

考题 You are in charge of a towing vessel that operates exclusively on inland waters. You regularly tow barges that provide services (cargo lighters,fuel barges,etc.) to foreign flag vessels in port. What will be accepted as proper credentials for you and your crew?A.No credentials are required since you operate on inland waters onlyB.Social Security cardC.State driver's license with photo IDD.Merchant Mariner's Document

考题 Antiseptics are used principally to ______.A.speed healingB.prevent infectionC.reduce inflammationD.increase blood circulation

考题 请阅读短文,完成此题。 When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation. In this manner, the salinity is increased, since the salt stays behind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained. The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by-evaporation, or decreased by the addition of fresh water by precipitation. Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas. A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water. In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portion of the oceans of the world. Which of the following is not the cause of the decrease in the oceanic salinity? 查看材料A.Precipitation. B.Rain and snow. C.Formation of ice. D.Addition of water by rivers.

考题 请阅读短文,完成此题。 When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation. In this manner, the salinity is increased, since the salt stays behind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained. The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by-evaporation, or decreased by the addition of fresh water by precipitation. Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas. A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water. In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portion of the oceans of the world. This passage mainly tells us about__________. 查看材料A.the analysis of the salinity of ocean waters B.the causes of the variation in oceanic salinity C.the importance of the changes in oceanic salinity D.the different forms of salts in ocean waters

考题 根据下列内容,回答201-205题。 When we analyze the salt salinity(盐浓度) of ocean waters, we find that it varies only slightlyfrom place to place. Nevertheless, some of these small changes are important. There are three basicprocesses that cause a change in oceanic salinity. One of these is the subtraction of water from theocean by means of evaporation. In this manner, the salinity is increased, since the salt stays be-hind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained. The opposite of evaporation is precipitation, such as rain, by which water is added to theocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas ofhigh rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increasedby the subtraction of water by evaporation, or decreased by the addition of fresh water by precipi-tation. Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higherthan it is in other parts of the world where there is not as much evaporation. Similarly, in coastalregions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas. A third process by which salinity may be altered is associated with the formation and melting ofsea ice. When seawater is frozen, the dissolved materials are left behind. In thismanner, seawaterdirectly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water. In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing pro-cess, which increases the salinity of cold water. This heavy water sinks and is found in the deeperportion of the oceans of the world. This passage mainly tells us about___________.A.the analysis of the salinity of ocean waters B.the causes of the variation in oceanic salinity C.the importance of the changes in oceanic salinity D.the different forms of salts in ocean waters

考题 The big lake was contaminated with waste waters from nearby factories.A:widened B:blackened C:polluted D:mixed

考题 下列液相色谱仪中的机械泵不能用于四元梯度洗脱的设备是()。A、日立L-2130B、Waters1525C、戴安3000D、Waters2695

考题 单选题You are in charge of a towing vessel that operates exclusively on inland waters. You regularly tow barges that provide services (cargo lighters,fuel barges,etc.) to foreign flag vessels in port. What will be accepted as proper credentials for you and your crew? ()A No credentials are required since you operate on inland waters onlyB Social Security cardC State driver's license with photo IDD Merchant Mariner's Document

考题 单选题There is actually an overlapped area of()ocean regions somewhere in Western European Waters.A twoB threeC more than twoD more than three

考题 单选题The officer of the watch should use radar when appropriate and at all times in()waters.A congestingB congestedC congestionD congest

考题 单选题What can we infer from the last paragraph?A The exploration of a little-known coral reef must be continued.B Rainbow Warrior is determined to forbid bottom trawling in international waters.C Rainbow Warrior will unearth crucial evidence to stop the bottom trawling.D The UN is determined to forbid bottom trawling in international waters.

考题 单选题Which of the following is true according to the speaker?A The atmosphere is marked with turbulences.B The deep waters are full of turbulent currents.C The atmosphere is heated from above.D The deep waters are heated from below.

考题 单选题We()a sharp lookout while sailing in the iced waters.A keepB keptC are keepingD have kept

考题 单选题An increase in the heat load to a refrigeration system will cause ().A the suction pressure to decreaseB the suction temperature to increaseC increased ice formation on the evaporator coilD excessive short cycling of the compressor

考题 单选题The term “Father of Waters” is used to refer to _____ in the US.A the Nile RiverB the Amazon RiverC the Hudson RiverD the Mississippi River

考题 单选题Until about a century ago, the deep ocean floor, was completely inaccessible, hidden beneath waters averaging 3,600 meters deep.A understandableB recognizable C unreachable D unusable

考题 单选题What will happen with the freshening of waters?A Sea-ice formation will reduce,B Antarctic ice shelves will melt.C Rainfall will increase,D The circulation of deep waters will reduce.

考题 单选题Traffic separation schemes established by the International Maritime Organization().A provide routing and scheduling procedures to reduce shipping delaysB provide traffic patterns in congested areas,so that vessels can operate without having a separate lookoutC provide inbound and outbound lanes to promote the safe flow of vessel trafficD prohibit vessels carrying hazardous cargoes from entering waters that are environmentally sensitive

考题 单选题What natural feature is responsible for the rather even climate found on the Florida peninsula throughout the year? ()A Strong masses of continental airB The Gulf StreamC The Bermuda highD The cool waters of the Sargasso sea

考题 单选题Metal plates that cover the top of the hawsepipe are called().A footingsB plugsC buckler platesD stop waters

考题 单选题Which statement concerning the navigation of a vessel in ice is FALSE?()A Anchoring in the presence of ice is not recommended except in an emergencyB Towing a vessel through an ice field is not recommended except in an emergencyC The Free and Proceed system of escorting a beset vessel cuts down on the number of freeing operationsD When anchoring in ice,it is advisable to increase the scope of the chain over what is normally used for non-icing conditions

考题 单选题Which of the following is INCORRECT according to the first two paragraphs?A Some cities in Albania have completely solved the problem of urban wastes.B There is lack of an adequate system for the collection and transportation of solid waste.C The country has not elaborated a strategy on urban solid waste.D There is a continuous danger for the infection of drinking waters with sewage waters in some cities.

考题 单选题A It is the regular rise and fall of ocean waters.B It is the destructive wall of water.C It is the sudden rise of ocean waters.D It is the underwater earthquake.

考题 单选题Different foods are to be found on three shelves in a fridge. Butter is kept below the eggs while cheese is kept above the milk. The butter is also above the milk, but the eggs are on the same shelf as the yoghurt. The ice cream is above the cheese. What is on the bottom shelf?A Butter.B Eggs.C Cheese.D Milk.