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Cold water flowing southward through the western part of the

题目
单选题
Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the（）.
A

Alaska Current

B

Subarctic Current

C

Kuroshio Current

D

Oyashio Current

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相似问题和答案

第1题：

Which statement about damage control is TRUE ________．

A.A hole in the hull at the waterline is more dangerous than a hole below the inner bottom

B.The amount of water entering a ship through a hole varies inversely to the area of the hole

C.Water flowing into a lower compartment on a ship is more dangerous than water on deck or flowing into an upper compartment

D.Water flowing over the forecastle bulwark is more dangerous than a hole in the hull at the waterline


正确答案：A

第2题：

The purpose of mentioning the Weddell Sea is___________.

A.to give an example of cold-water salinity
B.to point out the location of deep waters
C.to make a comparison between hot-water salinity and cold-water salinity
D.to show that the water in the Weddell Sea varies in salinity from place to place

答案：A
解析：
根据“In the Weddell Sea，the densest water in the ocean is formed as a resuit ofthis freez．ing process，which increases the salinity of cold water．”可知，Weddell Sea是作为一个例子，说明this freezing pro—cess引起盐度变化，答案为A。

第3题：

In a diesel engine closed freshwater cooling system, the amount of coolant flowing through the heat exchanger is controlled by the __.

A.suction pressure regulator

B.thermostatic bypass valve

C.sea water temperature

D.water level in the expansion tank


正确答案：B

第4题：

以下英文描述表示“冷水手洗”的选项是（）。

  • A、Do not wash by hand Water washing
  • B、Cold water to wash
  • C、Hand wash in cold water
  • D、Dry cleaning only

正确答案:C

第5题：

When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."

Doctors

A.encourage people to take part in cold-water swimming actively
B.point out the possible danger of blood illness during cold-water swimming
C.believe swimming is helpful both in winter and in summer
D.have different ideas about the medical effects of cold-water swimming

答案：D
解析：
考情点拨:事实细节题。应试指导:从第二段可知，医生对冬泳的医疗作用有不同的观点。一些医生认为冬泳时体温降得太低，容易使心脏停止跳动，另一些医生认为在夏季游泳更容易导致心脏病的危险：

第6题：

Convection spreads a fire by ______.

A.heated gases flowing through ventilation systems

B.the transfer of heat across an unobstructed space

C.burning liquids flowing into another space

D.transmitting the heat of a fire through the ship’s metal


正确答案：A
火灾的对流蔓延由热的气体经过通风系统来完成。

第7题：

When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."

The passage is mainly about

A.a group of cold-water-swimming lovers
B.the Polar Bears'life in New York
C.doctors'ideas about cold-water swimming
D.the requirements of the Polar Bear Club

答案：A
解析：
考情点拨:主旨大意题。应试指导:本文讲述了冬泳爱好者的一些状况。

第8题：

Steam smoke will occur when ______.

A.extremely cold air from shore passes over warmer water

B.warm dry air from shore passes over cooler water

C.cold ocean water evaporates into warm air

D.cool rain passes through a warm air mass


正确答案：A

第9题：

When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."

According to the passage,some doctors believe it is true that

A.you are healthy if cold-water swimming turns your skin color blue
B.cold-water swimming causes more heart attacks in summer than in winter
C.cold-water swimming can make the body temperature dangerously high
D.Polar Bears are bears swimming in freezing water

答案：B
解析：
考情点拨:事实细节题。应试指导:从第二段第三句可知，有些医生认为夏李气温和水温差别大，游泳时易发生心脏病，而冬季游泳确相反。

第10题：

（）part is the most densely populated region in America.

  • A、The southern
  • B、The northeastern
  • C、The western

正确答案:B

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