多选题Studded starfish are well protected from most predators and parasites by ______ surface whose studs are actually modified spines.Aa vulnerableBan armoredCan obtuseDa brittleEa concaveFa rugged

题目
多选题
Studded starfish are well protected from most predators and parasites by ______ surface whose studs are actually modified spines.
A

a vulnerable

B

an armored

C

an obtuse

D

a brittle

E

a concave

F

a rugged

相似考题

1.On most campuses, one can find an international club, which includes Americans, where students can get to know and learn socially from students from other countries, as well as Americans.

2.评剧院里很多女演员学会了打毛衣 ，大都是我教她们的。A、Many actresses in the Pingju Theatre learned to knit, in most cases I taught them.B、Many other actresses in the pingju Theatre learned to knit as well, mostly from me.C、Many actress in the pingju Theatre learned to knit, mostly from me.D、Many other actress in the Pingju Theatre learned to knit as well, and in most cases I taught them.

3.Of all the websites, one that has attracted attention recently is my space.com. Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. If my space.com shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them . One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on, often predators know exactly where they will be The most information that is safe is your first name and province. Anything more is basically life. Another big problem is photos. I suggest skipping photos and never posting a photo of a friend online without his or her how well you think you know this person. There are no guarantees that they have told the truth.1. Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer.2. One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on.3. If my space.com shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them .4. Another big problem is photos. I suggest skipping photos and posting a photo of a friend online without his or her how well you think you know this person.5. There are no guarantees that they have told the truth.

4.Of all the websites, one that has attracted attention recently is my . Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. If my shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them .One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on, often predators know exactly where they will be The most information that is safe is your first name and province. Anything more is basically life.Another big problem is photos. I suggest skipping photos and never posting a photo of a friend online without his or her how well you think you know this person. There are no guarantees that they have told the truth.Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. {T; F}One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on. {T; F}If my shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them . {T; F}Another big problem is photos. I suggest skipping photos and posting a photo of a friend online without his or her how well you think you know this person. {T; F}There are no guarantees that they have told the truth. {T; F}

参考答案和解析
正确答案： D,B
解析：
句子表明，海星皮肤表层的脊椎就像是体刺，能够很好的保护其不受天敌和寄生虫的侵犯，因此最符合空格处意思的词语应该是B armored（装甲的，铠装的）和F rugged（坚固的，粗糙的）；A vulnerable易受攻击的；易受伤害的；C obtuse钝的，不锋利的；D brittle易碎的，脆弱的；E concave凹的，凹面的。
更多“多选题Studded starfish are well protected from most predators and parasites by ______ surface whose studs are actually modified spines.Aa vulnerableBan armoredCan obtuseDa brittleEa concaveFa rugged”相关问题

  • 第1题：

    One of the most common causes of reduction gear failure is gear wear caused by scoring as a result of

    A.surface fatigue of the gears

    B.an inadequate lube oil film

    C.plastic flow of the gears

    D.fretting corrosion from water


    正确答案：B

  • 第2题：

    We learn from the text that “the honest ones” in the fourth paragraph most probably refers to colleges 。

    A. that are protected by campus security

    B. that report campus crime by law

    C. that are free from campus crime

    D. that enjoy very good publicity


    正确答案：B
    细节推理判断题。

  • 第3题：

    If the current and wind are in the same direction，the sea surface represents a wind speed ______.

    A.lower than actually exists

    B.higher than actually exists

    C.that actually exists

    D.that has no proportional relationship


    正确答案：A

  • 第4题：

    The student from a __________" family can afford most of the books he wants.

    A．well-to-do
    B．to-do-well
    C．do-to-well
    D．do-well-to

    答案：A
    解析：
    考查合成形容词用法。well-to-do“小康的，富裕的”。句意为“家庭富裕的学生能买得起大部分他想要的书”。故选A。

  • 第5题：

    共用题干
    第一篇

    Water Resources on the Earth

    The second most important constituent（构成成分）of the biosphere（生物圈）is liquid water. This can only exist in a very narrow range of temperatures,since water freezes at 0℃and boils a 100℃．Life as we know it would only be possible on the surface of a planet which had temperature: somewhere within this narrow range.
    The earth's supply of water probably remains fairly constant in quantity.The total quantity of water is not known very accurately,but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers.Most of it is in the form of the salt water of the oceans一about 97 percent. The rest is fresh.But three-quarters of this is in the form of ice at the poles and or mountains and cannot be used by living systems until melted.Of the remaining fraction,which h somewhat less than one percent of the whole.There is 10—20 times as much stored underground water as there is actually on the surface.There is also a tiny,but extremely important fraction of the water supply which is present as water vapour in the atmosphere.
    Water vapour in the atmosphere is the channel through which the whole water circulation（循环） of the biosphere has to pass.Water evaporated（蒸发）from the surface of the oceans,from lakes and rivers and from moist（潮湿的）earth is added to it. From it the water comes out again as rain or snow,falling on either the sea or the land. There is,as might be expected, a more intensive evaporation per unit area over the sea and oceans than over the land,but there is more rainfall over the land than over the oceans and the balance is restored by the run off from the land in the form of rivers.

    Most of the fresh water on Earth________.
    A:is in the form of ice at the poles and on mountains
    B:is stored underground
    C:is found in rivers and lakes
    D:comes from the rain

    答案：A
    解析：
    文章第一段的第二句讲到液态水“only exist in a very narrow range of temperatures"，虽然B（我们星球的表面）也有点道理，但是液态水对温度的要求很高，并非地球的所有表面都有液态水存在，所以答案D正确。
    第二段第一句提到地球上水的供给“remains fairly constant in quantity"，数量上是恒定的，它就没有增加也不会减少，只不过会以不同的形态出现，所以选择B（保持不变）。
    问题是“地球上绝大部分淡水以什么形式出现？”第二段中间提到淡水时，说到“three-quarters of this is in the form of ice at the poles and on mountains"，即3/4的淡水以冰的形式存在于两极和高山中，后面提到剩余部分的淡水存在于地下，但占比少于1%,所以选项A正确。
    词义辫析题， fraction有“小部分”的意思，考虑到前面提到地球97％的水以海洋咸水的形式存在，剩下的3％则以冰的形式存在于两极和高山，余下的自然不多，所以选B。
    第三段的最后一句说到“there is more rainfall over the land than over the oceans”，陆地的降雨比海洋要多，但没有提到河流和山脉的降雨比较，所以C正确。大气中的水蒸气是整个生物圈的水循环必经的途径。水从海洋的表面、湖泊、河流和潮湿的泥土中蒸发出来并补充到大气中。水以雨或雪的形式再次出现，降落在海洋或陆地上。可以预料到的是，海洋上空每单位面积的水蒸气比在陆地上空更为密集，但是，陆地比海洋有更多的降雨，水在陆地上以河流的形式流出以保持水资源的平衡。

  • 第6题：

    共用题干
    第一篇

    Water Resources on the Earth

    The second most important constituent（构成成分）of the biosphere（生物圈）is liquid water. This can only exist in a very narrow range of temperatures,since water freezes at 0℃and boils a 100℃．Life as we know it would only be possible on the surface of a planet which had temperature: somewhere within this narrow range.
    The earth's supply of water probably remains fairly constant in quantity.The total quantity of water is not known very accurately,but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers.Most of it is in the form of the salt water of the oceans一about 97 percent. The rest is fresh.But three-quarters of this is in the form of ice at the poles and or mountains and cannot be used by living systems until melted.Of the remaining fraction,which h somewhat less than one percent of the whole.There is 10—20 times as much stored underground water as there is actually on the surface.There is also a tiny,but extremely important fraction of the water supply which is present as water vapour in the atmosphere.
    Water vapour in the atmosphere is the channel through which the whole water circulation（循环） of the biosphere has to pass.Water evaporated（蒸发）from the surface of the oceans,from lakes and rivers and from moist（潮湿的）earth is added to it. From it the water comes out again as rain or snow,falling on either the sea or the land. There is,as might be expected, a more intensive evaporation per unit area over the sea and oceans than over the land,but there is more rainfall over the land than over the oceans and the balance is restored by the run off from the land in the form of rivers.

    There is more of rainfall________.
    A:over the mountains than over the rivers
    B:over the rivers than over the mountains
    C:over the land than over the oceans
    D:over the oceans than over the land

    答案：C
    解析：
    文章第一段的第二句讲到液态水“only exist in a very narrow range of temperatures"，虽然B（我们星球的表面）也有点道理，但是液态水对温度的要求很高，并非地球的所有表面都有液态水存在，所以答案D正确。
    第二段第一句提到地球上水的供给“remains fairly constant in quantity"，数量上是恒定的，它就没有增加也不会减少，只不过会以不同的形态出现，所以选择B（保持不变）。
    问题是“地球上绝大部分淡水以什么形式出现？”第二段中间提到淡水时，说到“three-quarters of this is in the form of ice at the poles and on mountains"，即3/4的淡水以冰的形式存在于两极和高山中，后面提到剩余部分的淡水存在于地下，但占比少于1%,所以选项A正确。
    词义辫析题， fraction有“小部分”的意思，考虑到前面提到地球97％的水以海洋咸水的形式存在，剩下的3％则以冰的形式存在于两极和高山，余下的自然不多，所以选B。
    第三段的最后一句说到“there is more rainfall over the land than over the oceans”，陆地的降雨比海洋要多，但没有提到河流和山脉的降雨比较，所以C正确。大气中的水蒸气是整个生物圈的水循环必经的途径。水从海洋的表面、湖泊、河流和潮湿的泥土中蒸发出来并补充到大气中。水以雨或雪的形式再次出现，降落在海洋或陆地上。可以预料到的是，海洋上空每单位面积的水蒸气比在陆地上空更为密集，但是，陆地比海洋有更多的降雨，水在陆地上以河流的形式流出以保持水资源的平衡。

  • 第7题：

    A customer wants to have employees work from remote locations as well as in the office.  All communications must be secure and files must be protected from access by unauthorized people.  The employee’s applications （database inserts and reads） are only accessed with a web browser.  Which of the following capabilities is necessary？（）

    • A、SSL
    • B、PGP
    • C、File encryption program
    • D、Public key encryption

    正确答案:A

  • 第8题：

    问答题
    What is the volume of a cube whose surface area is 150?

    正确答案： 125
    解析：
    根据题意，设正方体的每条边长为e，那么根据正方体的表面积公式可得6e²=150→e=5，因此V=53 =125.

  • 第9题：

    单选题
    In the combustion chamber, the part whose surface is exposed to the highest temperature is the （）.
    A

    cylinder liner

    B

    cylinder cover

    C

    piston

    D

    exhaust valve


    正确答案： C
    解析： 暂无解析

  • 第10题：

    多选题
    Which two are characteristics of an IPv6 multicast address？（）
    A

    First （most significant ） octet is FF in hex

    B

    Starts with a prefix of FE80 to FEBF in hex

    C

    Starts with a prefix of FECO to FEFF in hex

    D

    Second octet contains a 4-bit multicast scope field

    E

    Last 64 bit contains the modified MAC address of the Ethernet interface

    F

    Is allocated from the unicast address space


    正确答案： D,C
    解析： 暂无解析

  • 第11题：

    单选题
    Only a small part of the sun’s energy reaches the earth’ s surface because most of it is ______.
    A

    absorbed by the clouds in the lower atmosphere

    B

    reflected by the gases in the upper atmosphere

    C

    lost in the upper and lower atmosphere

    D

    used to evaporate water from the oceans and lakes


    正确答案： B
    解析：
    根据第二段It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the earth’s surface.太阳的多数能量是被高空中的大气反射或者吸收。因此B选项正确。

  • 第12题：

    单选题
    Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）
    A

    The cursor is only protected from updates and deletes by concurrent applications.

    B

    The row is only protected from positioned updates and deletes that reference another cursor of the same application.

    C

    The cursor is protected from positioned updates and deletes that reference another cursor of a different application.

    D

    The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.


    正确答案： B
    解析： 暂无解析

  • 第13题：

    What is the most advantage of the lean-combustion different from the routine combustion?

    A.Continue running

    B.Well combustion

    C.Higher peak temperature

    D.Lower holding time of Maximum temperature


    正确答案：D

  • 第14题：

    ________ means any person by whom or in whose name or on whose behalf a contract of carriage of goods by sea has been concluded with a carrier， or any person by whom or in whose name or on whose behalf the goods are actually delivered to the carrier in relation to the contract of carriage of goods by sea.

    A.Shipper

    B.Charterer

    C.Shipowner

    D.Carrier


    正确答案：A

  • 第15题：

    A conclusion can be reached from this paragraph that _______ is well insured and protected.

    A.the council's interest

    B.the salvor's interest

    C.the owners' interest

    D.the interest of servants' and agents' of the owners


    正确答案：A

  • 第16题：

    共用题干
    第一篇

    Water Resources on the Earth

    The second most important constituent（构成成分）of the biosphere（生物圈）is liquid water. This can only exist in a very narrow range of temperatures,since water freezes at 0℃and boils a 100℃．Life as we know it would only be possible on the surface of a planet which had temperature: somewhere within this narrow range.
    The earth's supply of water probably remains fairly constant in quantity.The total quantity of water is not known very accurately,but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers.Most of it is in the form of the salt water of the oceans一about 97 percent. The rest is fresh.But three-quarters of this is in the form of ice at the poles and or mountains and cannot be used by living systems until melted.Of the remaining fraction,which h somewhat less than one percent of the whole.There is 10—20 times as much stored underground water as there is actually on the surface.There is also a tiny,but extremely important fraction of the water supply which is present as water vapour in the atmosphere.
    Water vapour in the atmosphere is the channel through which the whole water circulation（循环） of the biosphere has to pass.Water evaporated（蒸发）from the surface of the oceans,from lakes and rivers and from moist（潮湿的）earth is added to it. From it the water comes out again as rain or snow,falling on either the sea or the land. There is,as might be expected, a more intensive evaporation per unit area over the sea and oceans than over the land,but there is more rainfall over the land than over the oceans and the balance is restored by the run off from the land in the form of rivers.

    The word"fraction"in the second paragraph means________.
    A:a large area
    B:a very small amount
    C:an important system
    D:a major source of information

    答案：B
    解析：
    文章第一段的第二句讲到液态水“only exist in a very narrow range of temperatures"，虽然B（我们星球的表面）也有点道理，但是液态水对温度的要求很高，并非地球的所有表面都有液态水存在，所以答案D正确。
    第二段第一句提到地球上水的供给“remains fairly constant in quantity"，数量上是恒定的，它就没有增加也不会减少，只不过会以不同的形态出现，所以选择B（保持不变）。
    问题是“地球上绝大部分淡水以什么形式出现？”第二段中间提到淡水时，说到“three-quarters of this is in the form of ice at the poles and on mountains"，即3/4的淡水以冰的形式存在于两极和高山中，后面提到剩余部分的淡水存在于地下，但占比少于1%,所以选项A正确。
    词义辫析题， fraction有“小部分”的意思，考虑到前面提到地球97％的水以海洋咸水的形式存在，剩下的3％则以冰的形式存在于两极和高山，余下的自然不多，所以选B。
    第三段的最后一句说到“there is more rainfall over the land than over the oceans”，陆地的降雨比海洋要多，但没有提到河流和山脉的降雨比较，所以C正确。大气中的水蒸气是整个生物圈的水循环必经的途径。水从海洋的表面、湖泊、河流和潮湿的泥土中蒸发出来并补充到大气中。水以雨或雪的形式再次出现，降落在海洋或陆地上。可以预料到的是，海洋上空每单位面积的水蒸气比在陆地上空更为密集，但是，陆地比海洋有更多的降雨，水在陆地上以河流的形式流出以保持水资源的平衡。

  • 第17题：

    共用题干
    第一篇

    Water Resources on the Earth

    The second most important constituent（构成成分）of the biosphere（生物圈）is liquid water. This can only exist in a very narrow range of temperatures,since water freezes at 0℃and boils a 100℃．Life as we know it would only be possible on the surface of a planet which had temperature: somewhere within this narrow range.
    The earth's supply of water probably remains fairly constant in quantity.The total quantity of water is not known very accurately,but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers.Most of it is in the form of the salt water of the oceans一about 97 percent. The rest is fresh.But three-quarters of this is in the form of ice at the poles and or mountains and cannot be used by living systems until melted.Of the remaining fraction,which h somewhat less than one percent of the whole.There is 10—20 times as much stored underground water as there is actually on the surface.There is also a tiny,but extremely important fraction of the water supply which is present as water vapour in the atmosphere.
    Water vapour in the atmosphere is the channel through which the whole water circulation（循环） of the biosphere has to pass.Water evaporated（蒸发）from the surface of the oceans,from lakes and rivers and from moist（潮湿的）earth is added to it. From it the water comes out again as rain or snow,falling on either the sea or the land. There is,as might be expected, a more intensive evaporation per unit area over the sea and oceans than over the land,but there is more rainfall over the land than over the oceans and the balance is restored by the run off from the land in the form of rivers.

    Liquid water only exists________.
    A: in the center of the earth
    B:on the surface of our planet
    C:in the coastal areas of the earth
    D:in a very narrow range of temperatures

    答案：D
    解析：
    文章第一段的第二句讲到液态水“only exist in a very narrow range of temperatures"，虽然B（我们星球的表面）也有点道理，但是液态水对温度的要求很高，并非地球的所有表面都有液态水存在，所以答案D正确。
    第二段第一句提到地球上水的供给“remains fairly constant in quantity"，数量上是恒定的，它就没有增加也不会减少，只不过会以不同的形态出现，所以选择B（保持不变）。
    问题是“地球上绝大部分淡水以什么形式出现？”第二段中间提到淡水时，说到“three-quarters of this is in the form of ice at the poles and on mountains"，即3/4的淡水以冰的形式存在于两极和高山中，后面提到剩余部分的淡水存在于地下，但占比少于1%,所以选项A正确。
    词义辫析题， fraction有“小部分”的意思，考虑到前面提到地球97％的水以海洋咸水的形式存在，剩下的3％则以冰的形式存在于两极和高山，余下的自然不多，所以选B。
    第三段的最后一句说到“there is more rainfall over the land than over the oceans”，陆地的降雨比海洋要多，但没有提到河流和山脉的降雨比较，所以C正确。大气中的水蒸气是整个生物圈的水循环必经的途径。水从海洋的表面、湖泊、河流和潮湿的泥土中蒸发出来并补充到大气中。水以雨或雪的形式再次出现，降落在海洋或陆地上。可以预料到的是，海洋上空每单位面积的水蒸气比在陆地上空更为密集，但是，陆地比海洋有更多的降雨，水在陆地上以河流的形式流出以保持水资源的平衡。

  • 第18题：

    Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）

    • A、The cursor is only protected from updates and deletes by concurrent applications.
    • B、The row is only protected from positioned updates and deletes that reference another cursor of the same application.
    • C、The cursor is protected from positioned updates and deletes that reference another cursor of a different application.
    • D、The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.

    正确答案:A

  • 第19题：

    单选题
    Rarely be seen, the white mountain goat is an extremely sure-footed animal that escapes from its predators by living in the most rugged, rocky landscapes.
    A

    Having been rarely seen

    B

    Rarely to be seen

    C

    Rarely seen

    D

    Being rarely seen


    正确答案： B
    解析：
    句意：极其少见的白山羊是一种很稳健的动物，为了逃避捕猎者，它们住在起伏的山地里。小分句主语实际是the white mountain goat，与动词see的关系很明显是被动的。Done 表示动作已经完成，符合题意。Being done表示动作正在进行。To be done表示动作还未发生。

  • 第20题：

    单选题
    Select one answer choice.　 Based on information from the passage, which of these people would be MOST likely to develop Huntington’s disease?
    A

    Someone who carries the huntingtin gene

    B

    Someone whose parents come from Portugal

    C

    Someone with 25 CAG repetitions in the huntingtin gene

    D

    Someone of Romanian ancestry

    E

    Someone whose grandfather died of Huntington’s disease


    正确答案： D
    解析：
    几个选项相比，E的答案更加符合文意。

  • 第21题：

    单选题
    If the current and wind are in the same direction，the sea surface represents a wind speed （）.
    A

    lower than actually exists

    B

    higher than actually exists

    C

    that actually exists

    D

    that has no proportional relationship


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following is the best way to combine sentences 2 and 3 (reproduced below)?They simply select the candidate by picking the one whose personality they like the most. They don't realize that choosing a leader is a much more serious task than that.
    A

    They don't realize that choosing a leader is more serious than that, selecting the one whose personality they like the most.

    B

    Selecting the one that has the personality they like most, they don't realize that it’s more serious than that.

    C

    Not realizing how serious a task it is to choose a leader, they simply select the candidate whose personality they like most.

    D

    Because of not realizing how serious it is choosing a leader, they simply select the candidate whose personality they like most.

    E

    Because they simply select the candidate with the personality they like the most, they don't realize that choosing a leader is more serious than that.


    正确答案： B
    解析：
    C选项合理的将句中思想组织在一起，故选C。

  • 第23题：

    多选题
    Which two statements about sequences are true?（）
    A

    You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.

    B

    You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence.

    C

    You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence.

    D

    You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column.

    E

    If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence.

    F

    You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.


    正确答案： B,F
    解析： 暂无解析

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