海船船员考试
单选题The two most effective generating forces of surface ocean currents are（）.A temperature and salinity differences in the waterB wind and density differences in the waterC water depth and underwater topographyD rotation of the Earth and continental interf
题目
单选题
The two most effective generating forces of surface ocean currents are（）.
A
temperature and salinity differences in the water
B
wind and density differences in the water
C
water depth and underwater topography
D
rotation of the Earth and continental interference
参考答案和解析
正确答案：
C
解析：
暂无解析
如果没有搜索结果，请直接 联系老师 获取答案。
相似问题和答案
第1题：
Solid green arrows on the main body of a pilot chart indicate ______.
A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
正确答案：B
第2题：
The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．
A.Forming a cloud cover over the flames
B.Directing the gas at the base of the flames in a slow sweeping motion
C.Discharging the carbon dioxide into the heart of the flames
D.Bouncing the discharge off an adjacent bulkhead just above the burning surface
正确答案：B
第3题：
According to the passage, which is true about the ocean?
A. The waters of the ocean came from rain water.
B. The ocean was formed from the, lighter rock materials.
C. The vast single ocean formed about 200 million years ago.
D. The ocean covered the whole surface of the earth at very beginning.
正确答案：A
45．答案为A。选项A符合第二段内容。选项B与原文不符；选项C与第三段最后一句及最后一段不符；选项D与原文第二段最后一句不符。
第4题：
共用题干
第二篇
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you
knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The
plates include both ocean floor and dry land.Some have whole continents on top of them.
The continents on top of the plates are just going along for a slow ride,moving only about
four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving
away from each other. As the plates separate , hot magma（岩浆）flows up to fill the
space. New crust（地壳）builds up on the plate boundaries and causes ocean ridges.
These ridges form long mountain ranges,which only rise above the ocean surface in a few
places.
Another type of reaction-trenches-occurs between two plates that are moving toward
each other.As the plates meet,one bends downward and plunges underneath the other.
This forms deep ocean trenches.The Marianas Trench off Guam in the western Pacific
Ocean has a depth of more than 36,000 feet.This is the lowest point on the ocean floor.
If the leading edges of the two colliding plates carry continents,then the layers of rock in the
overriding plate crumple（变皱）and fold. A plate that carried what is now India collided with
the southern edge of the plate that carried Europe and most of Asia.This caused the
Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates
that are traveling in opposite directions slide past each other.Severe earthquakes can
occur. The San Andreas Fault in California is a good example of this type of movement.
第二篇
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you
knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The
plates include both ocean floor and dry land.Some have whole continents on top of them.
The continents on top of the plates are just going along for a slow ride,moving only about
four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving
away from each other. As the plates separate , hot magma（岩浆）flows up to fill the
space. New crust（地壳）builds up on the plate boundaries and causes ocean ridges.
These ridges form long mountain ranges,which only rise above the ocean surface in a few
places.
Another type of reaction-trenches-occurs between two plates that are moving toward
each other.As the plates meet,one bends downward and plunges underneath the other.
This forms deep ocean trenches.The Marianas Trench off Guam in the western Pacific
Ocean has a depth of more than 36,000 feet.This is the lowest point on the ocean floor.
If the leading edges of the two colliding plates carry continents,then the layers of rock in the
overriding plate crumple（变皱）and fold. A plate that carried what is now India collided with
the southern edge of the plate that carried Europe and most of Asia.This caused the
Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates
that are traveling in opposite directions slide past each other.Severe earthquakes can
occur. The San Andreas Fault in California is a good example of this type of movement.
To explain the effect of trenches,the writer gives the example of
A:the sea floor in the Atlantic Ocean.
B:the Himalayan Mountains.
C:Europe.
D:India.
A:the sea floor in the Atlantic Ocean.
B:the Himalayan Mountains.
C:Europe.
D:India.
答案：B
解析：
第5题：
共用题干
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
The San Andreas Fault is an example of______.
A: a severe earthquake
B: a California rock formation
C: two plates moving apart
D: two plates sliding past each other
A: a severe earthquake
B: a California rock formation
C: two plates moving apart
D: two plates sliding past each other
答案：D
解析：
stable这个词作为名词有“马厩、养在马厩里的一群动物”等意思。作形容词意为 “稳定的、不变的、稳固的”。文中stable应为形容词，地球表面stable，这里stable应该是“稳固的”，即steady or firm。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
第6题：
Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________．
A.They are effective on most vessels at speeds up to 10 knots
B.Because of their location，most modern installations have as much power as a tug
C.They are fully effective at all drafts
D.When going astern at slow speed，they provide effective steering control
正确答案：D
第7题：
共用题干
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
This passage is mostly about______.
A: effects of movements of the earth's plates
B: different types of continents
C: the Marianas Trench
D: transform faults
A: effects of movements of the earth's plates
B: different types of continents
C: the Marianas Trench
D: transform faults
答案：A
解析：
stable这个词作为名词有“马厩、养在马厩里的一群动物”等意思。作形容词意为 “稳定的、不变的、稳固的”。文中stable应为形容词，地球表面stable，这里stable应该是“稳固的”，即steady or firm。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
第8题：
The most effective way to apply a foam stream if the fire is on deck or is a runing fire, is to direct the stream ______.
A.onto the surface of the burning liquid
B.ahead of the burning liquid and bounce it on the fire
C.at the base of the burning liquid in a sweeping motion
D.just above the surface of the burning liquid
正确答案：B
最有效的泡沫流应用在甲板上的火或者流动火，是直接放到液体前面和跳回到液体表面。
最有效的泡沫流应用在甲板上的火或者流动火，是直接放到液体前面和跳回到液体表面。
第9题：
共用题干
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
A Very Slow Ride
The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.
The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.
One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.
Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carried
Europe and most of Asia. This caused the Himalayas,the world's highest mountains.
The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The San
Andreas Fault in California is a good example of this type of movement.
According to the passage,the earth is______.
A: always changing
B: becoming smaller
C: moving faster
D: getting hotter
A: always changing
B: becoming smaller
C: moving faster
D: getting hotter
答案：A
解析：
stable这个词作为名词有“马厩、养在马厩里的一群动物”等意思。作形容词意为 “稳定的、不变的、稳固的”。文中stable应为形容词，地球表面stable，这里stable应该是“稳固的”，即steady or firm。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
文章第四段讲述板块移动产生的第二种相互作用——海沟（trenches）的形成过程及影响。作者列举了两个例子来说明其影响：一是西太平洋的the Mariannas Trench off Guam，一是印度大陆板块与亚欧大陆板块相互碰撞所形成的喜马拉稚山。所以四个选项中只有B项Himalayan Mountains是海沟的影响。
文章最后一句话提到the San Andreas Fault in California是这种板块作用的很好的例子。本段在讲板块移动的最后一种相互作用——转换断层，它出现在两个朝相反方向移动的板块相互滑过之后，所以正确选项为D。
回答这个问题需要考虑全文：本文讲述了地壳板块构造的性质及板块移动所导致的三种相互作用：海脊、海沟以及转换断层。这三个例子充分说明地球表面由于板块作用而不稳固（unstable)、在不断变化（changing)，选项A正确。
通过对以上四题的分析，这个题的答案是显而易见的。这篇文章主要是有关板块移动所造成的三种影响——三种相互作用，选项A正确。
第10题：
Which of the following security mitigation techniques is the MOST effective against zero-day attacks?（）
- A、Update antivirus definitions
- B、MAC filtering
- C、Effective security policies
- D、User awareness training
正确答案:D