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单选题
The eye of a hurricane is surrounded by dense black cumulonimbus clouds which are called the（）.
A
Wall cloud
B
Nimbostratus cloud
C
Bar
D
Funnel
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考题
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm ______.A.to the right of the storm's trackB.measured from true north clockwise to 180°TC.measured from true north counterclockwise to 180°TD.between the ship's heading and the bearing to the eye
考题
The irregular black line around a charted light such as Race Rock Light indicates that it is ______.A.unwatchedB.surrounded by riprapC.a minor lightD.constructed on an artificial island
考题
A vessel entering the eye of a hurricane should expect ______.A.moderating winds and heavy confused seas to strike his vessel from all directionsB.the winds to increase to hurricane force and strike from a different direction as the eye passesC.the barometer to reach the lowest pointD.All of the above
考题
The dense black cumulonimbus clouds surrounding the eye of a hurricane are called ______．A.Spiral rainbandsB.Cloud wallsC.Funnel cloudsD.Cyclonic spirals
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Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.Paragraph 3_________A: What Should You Do During a Hurricane?B: What Are Different Names of Hurricanes?C: What Is a Hurricane?D: What Damages Can a Hurricane Cause?E: How Do You Know a Hurricane Is Coming?F: Where Do Hurricanes Usually Happen?
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Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.During a hurricane one should stay away from________.A: inland floodingB: natural disasterC: early warningD: windows and glass doorsE: a constant speedF: different labels
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Black HolesMost scientists agree that black holes exist but are nearly impossible to locate.A black hole in the universe is not a solid object,like a planet,but it is shaped like a sphere（球体）. Astronomers（天文学家）think that at the center of a black hole there is a single point in space with infinite（无限的）density（稠密）.This single point is called a singularity（奇点）. If the singularity theory is correct,it means that when a massive star collapses,all the material in it disappears into the singularity.The center of a black hole would not really be a hole at all,but an infinitely dense point.Anything that crosses the black hole is pulled in by its great gravity.Although black holes do exist,they are difficult to observe.These are the reasons.No light or anything else comes out of black holes.As a result,they are invisible to a telescope.In astronomical terms,black holes are truly tiny.For example,a black hole formed by the collapse of a giant star would have an event horizon（视界）only 18 miles across.The nearest black holes would be dozens of light years away from Earth.One light year is about 6 trillion（万亿）miles. Even the most powerlul telescopes could not pick out an object so small at such a great distance.In 1994 the Hubble Space Telescope provided evidence that black holes exist.There are still answers to be found,however,so black holes remain one of the mysteries of the universe.The nearest black holes are hundreds of light years away from us.A:Right B:Wrong C:Not mentioned
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第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.When the warm air from the sea surface begins to rise,itA:creates an area of low pressure.B:supplies cold air to the eye of a hurricane.C:increases the sea-surface temperature.D:strengthens the rotation of the earth.
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Black HolesMost scientists agree that black holes exist but are nearly impossible to locate.A black hole in the universe is not a solid object,like a planet,but it is shaped like a sphere（球体）. Astronomers（天文学家）think that at the center of a black hole there is a single point in space with infinite（无限的）density（稠密）.This single point is called a singularity（奇点）. If the singularity theory is correct,it means that when a massive star collapses,all the material in it disappears into the singularity.The center of a black hole would not really be a hole at all,but an infinitely dense point.Anything that crosses the black hole is pulled in by its great gravity.Although black holes do exist,they are difficult to observe.These are the reasons.No light or anything else comes out of black holes.As a result,they are invisible to a telescope.In astronomical terms,black holes are truly tiny.For example,a black hole formed by the collapse of a giant star would have an event horizon（视界）only 18 miles across.The nearest black holes would be dozens of light years away from Earth.One light year is about 6 trillion（万亿）miles. Even the most powerlul telescopes could not pick out an object so small at such a great distance.In 1994 the Hubble Space Telescope provided evidence that black holes exist.There are still answers to be found,however,so black holes remain one of the mysteries of the universe.The sun is the heaviest star in the universe.A:Right B:Wrong C:Not mentioned
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Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.Depending on where the occur,hurricanes have________.A: inland floodingB: natural disasterC: early warningD: windows and glass doorsE: a constant speedF: different labels
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第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.The word"impact"(paragraph 5)could be best replaced byA:"function". B:"pressure".C:"disaster". D:"eftect".
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第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.Which of the following is NOT true of Hurricane Katrina according to the last paragraph?A:The area affected is almost as big as the UK.B:It has left a disaster zone of 90,000 square miles.C:Over half a million people have beenforced to leave their homes.D:This crisis is more serious than that of the Great Depression.
考题
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第二篇Hurricane（咫风）KatrinaA hurricane is a fiercely powertul , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions. Over its lifetime,one of these storms can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorms over warm tropical waters.Hurricanes can only form and be fed when the sea-surface temperature exceeds 27℃ and the surrounding atmosphere is calm.These requirements are metbetween June and November in the northern part of the world.Under these conditions, large quantities of water evaporate（蒸发）and condense（冷凝）into clouds and rain-releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area.This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm.Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the US,leaving a disaster zone of 90,000 square miles in its wake（尾迹）一almost the size of the UK. Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the US since the Great Depression.The cost of the damage may top $100 billion.Which of the following is NOT a"requirement"for the formation of a hurricane?A:Calm surrounding atmosphere.B:High air pressure.C:Warm sea-surface temperature.D:A group of thunderstorms over warm tropical waters.
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第三篇Hurricane（飓风）KatrinaA hurricane is a fiercely powerful , rotating（旋转的）form of tropical storm that can be 124 to 1,240 miles in diameter. The term hurricane is derived from Hurican,the name of a native American storm god.Hurricanes are typical of a calm central region of low pressure between 12 to 60 miles in diameter,known as the eye.They occur in tropical regions.Over its lifetime,one of these can release as much energy as 10,000 nuclear bombs.The seed for hurricane formation is a cluster（聚集）of thunderstorm over warm tropical waters. Hurricanes can only form and be fed when the sea一surface temperature exceeds 27℃and the surrounding atmosphere is calm. These requirements are met between June and November in the northern part of the world.Under these conditions, large quantities of water evaporate (蒸发）and condense（冷凝）into clouds and rain一releasing heat in the process.It is this heat energy,combined with the rotation of the Earth,that drives a hurricane.When the warm column of air from the sea surface first begins to rise,it causes an area of low pressure.This in turn creates wind as air is drawn into the area. This spinning wind drags up more moist air from the sea surface in a process that strengthens the storm. Cold air falls back to the ocean surface through the eye and on the outside of the storm.Initially,when wind speeds reach 23 miles per hour,these mild,wet and grey weather systems are known as depressions,or low air pressure.Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005.Katrina has had a devastating impact on the Gulf Coast of the U.S.,leaving a disaster zone of 90,000 square miles in its wake（尾迹）—almost the size of the U.K.Thousands have been killed or injured and more than half a million people have become homeless in a humanitarian（人道主义的）crisis of a scale not seen in the U. S. since the Great Depression.The cost of the damage may top$100 billion.When the warm air from the sea surface begins to rise,it_______.A:creates an area of low pressureB:supplies cold air to the eye of a hurricaneC:increases the sea-surface temperatureD:strengthens the rotation of the earth
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Hurricane1 A hurricane（腿风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center known as the"eye".The "eye" is generally 20 to 30 miles wide,and the storm may extend outward 400 miles.As a hurricane nears land,it can bring heavy rains,high winds,and storm surges（风暴潮）.The storm surges and heavy rainscan lead to flooding.2 Hurricanes are given a different label,depending on where they occur.If they begin over the NorthAtlantic Ocean,the Caribbean Sea,the Gulf 0f Mexico,or the Northeast Pacific Ocean,they are called hur- ricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date line are called typhoons.Near Australia and in the Indian Ocean,they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains,inland （内陆的）flooding,and huge waves crashing on to the shore. During a hurricane,homes,businesses,and public buildings may be damaged or destroyed;roads and bridges can he washed away.A powerful hurricane can kill more people and deRtroy more property than ally other natural disaster. Fishermen arc at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour ifthey do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter im- mediately.Go to your safe room.If you do not have 0110,stay indoors during the hurricane and go to safer place near the center of your home.Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks,it's really dangerous.Do not be fooled if there is a lull（暂 停）;it could he the eve of the storm一winds will pick up again.Paragraph 4_________A:Where do Hurricanes Usually Happen? B:What Damages can a Hurricane Cause?C:What should You Do During a Hurricane? D:What is a Hurricane?E:What are Different Names of Hurricanes?F:How do You Know a Hurricane is Coming
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Hurricane1 A hurricane（腿风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center known as the"eye".The "eye" is generally 20 to 30 miles wide,and the storm may extend outward 400 miles.As a hurricane nears land,it can bring heavy rains,high winds,and storm surges（风暴潮）.The storm surges and heavy rainscan lead to flooding.2 Hurricanes are given a different label,depending on where they occur.If they begin over the NorthAtlantic Ocean,the Caribbean Sea,the Gulf 0f Mexico,or the Northeast Pacific Ocean,they are called hur- ricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date line are called typhoons.Near Australia and in the Indian Ocean,they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains,inland （内陆的）flooding,and huge waves crashing on to the shore. During a hurricane,homes,businesses,and public buildings may be damaged or destroyed;roads and bridges can he washed away.A powerful hurricane can kill more people and deRtroy more property than ally other natural disaster. Fishermen arc at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour ifthey do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter im- mediately.Go to your safe room.If you do not have 0110,stay indoors during the hurricane and go to safer place near the center of your home.Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks,it's really dangerous.Do not be fooled if there is a lull（暂 停）;it could he the eve of the storm一winds will pick up again.Depending on where they occur,hurricanes have_________.A:different labelsB:windows and glass doorsC:inland floodingD:early warningE:natural disasterF:a constant speed
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Hurricane1 A hurricane（腿风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center known as the"eye".The "eye" is generally 20 to 30 miles wide,and the storm may extend outward 400 miles.As a hurricane nears land,it can bring heavy rains,high winds,and storm surges（风暴潮）.The storm surges and heavy rainscan lead to flooding.2 Hurricanes are given a different label,depending on where they occur.If they begin over the NorthAtlantic Ocean,the Caribbean Sea,the Gulf 0f Mexico,or the Northeast Pacific Ocean,they are called hur- ricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date line are called typhoons.Near Australia and in the Indian Ocean,they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains,inland （内陆的）flooding,and huge waves crashing on to the shore. During a hurricane,homes,businesses,and public buildings may be damaged or destroyed;roads and bridges can he washed away.A powerful hurricane can kill more people and deRtroy more property than ally other natural disaster. Fishermen arc at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour ifthey do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter im- mediately.Go to your safe room.If you do not have 0110,stay indoors during the hurricane and go to safer place near the center of your home.Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks,it's really dangerous.Do not be fooled if there is a lull（暂 停）;it could he the eve of the storm一winds will pick up again.A powerful hurricane may become the most destructive__________.A:different labelsB:windows and glass doorsC:inland floodingD:early warningE:natural disasterF:a constant speed
考题
Which three statements are true about IP multicast configuration?（）A、PIM sparse - dense mode and PIM dense mode require an RP on the network.B、PIM sparse mode and PIM dense mode require an RP on the network.C、PIM sparse mode interfaces are always added to the multicast routing table in a router.D、PIM sparse mode and PIM sparse - dense mode require an RP on the network.E、PIM dense mode interfaces are always added to the multicast routing table in a router.F、PIM sparse - dense mode acts as PIM dense mode if an RP is not known.
考题
Which of the following multicast mode does Auto-RP require？（）A、Link-modeB、Dense modeC、Sparse modeD、Sparse-dense mode
考题
Which multicast mode does Auto-RP require?（）A、Link-modeB、Dense modeC、Sparse modeD、Sparse-dense mode
考题
单选题A vessel entering the eye of a hurricane should expect（）.A
moderating winds and heavy confused seas to strike his vessel from all directionsB
the winds to increase to hurricane force and strike from a different direction as the eye passesC
the barometer to reach the lowest pointD
All of the above
考题
单选题If it is impossible to avoid a hurricane in the Northern Hemisphere，the most favorable place to be when the storm passes is in（）.A
the dangerous semicircleB
the eye (center) of the stormC
that half of the storm lying to the right of the storm's pathD
that half of the storm lying to the left of the storm's path
考题
单选题The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm （）.A
to the right of the storm's trackB
measured from true north clockwise to 180°TC
measured from true north counterclockwise to 180°TD
between the ship's heading and the bearing to the eye
考题
单选题The dense black cumulonimbus clouds surrounding the eye of a hurricane are called（）.A
Spiral rainbandsB
Cloud wallsC
Funnel cloudsD
Cyclonic spirals
考题
单选题In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the（）.A
Starboard quarter，hold course and make as much speed as possibleB
Port bow，hold course and make as much speed as possible until the hurricane has passedC
Port quarter，maintain course and make as much speed as possibleD
Starboard bow and heave to until the hurricane has passed
考题
单选题The inner cloud bands of a hurricane，when viewed from a distance，form a mass of dense，black cumulonimbus clouds called the（）.A
bar of the stormB
eye of the stormC
funnelD
front
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