问答题Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment.
问答题
Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment.
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解析：
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John and I ______ friends for eight years. We first went to know each other at a Christmas party. But we ______ each other a couple of times before that. A had been; have seenB have been; have seenC had been; had seenD have been; had seen
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下列关于Fur的描述正确的有A、Fur可以在NURBS、Polygons和Subdives模型上生成B、可以控制Fur的密度、长度、宽度等参数C、Fur的创建跟模型的法线有关D、Fur的创建跟模型的UV无关
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共用题干第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula（半岛）was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800，000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp（纸浆）.In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.Alaska is an American state that________.A:locates within the Arctic CircleB:was known by Americans before 1867C:lies to the east of CanadaD:was once owned by Russia
共用题干第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula（半岛）was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800，000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp（纸浆）.In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.What is mainly responsible for the economic growth in Alaska now?A:Gold. B:Oil.C:Fish. D:Fur.
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 aboutA.a group of cold-water-swimming loversB.the Polar Bears'life in New YorkC.doctors'ideas about cold-water swimmingD.the requirements of the Polar Bear Club
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 Polar Bears like to swim all the year round,forA.they can remain youngB.it is an easy way to keep the body warm in winterC.they find it enjoyable and interestingD.they might meet fewer troubles in life
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."DoctorsA.encourage people to take part in cold-water swimming activelyB.point out the possible danger of blood illness during cold-water swimmingC.believe swimming is helpful both in winter and in summerD.have different ideas about the medical effects of cold-water swimming
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 thatA.you are healthy if cold-water swimming turns your skin color blueB.cold-water swimming causes more heart attacks in summer than in winterC.cold-water swimming can make the body temperature dangerously highD.Polar Bears are bears swimming in freezing water
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