核磁共振现象里的核指的是（） The meaning of nuclear in nuclear magnetic resonance is（）A．天然放射性核素 Natural radionuclideB．人工放射性核素 Artificial radionuclideC．原子核 NucleusD．自旋不为零的原子核 Nuclei with nonzero spin magnetic moment

题目

核磁共振现象里的核指的是（） The meaning of nuclear in nuclear magnetic resonance is（）

A．天然放射性核素 Natural radionuclide

B．人工放射性核素 Artificial radionuclide

C．原子核 Nucleus

D．自旋不为零的原子核 Nuclei with nonzero spin magnetic moment

相似考题

1.It forms ________ of the novel.(A) a nuclear(B) a nucleus(C) the nuclear(D) the nucleus

2.Liquid semiconductor is used to _________.A. get rid of the radioactive wasteB. test the power of nuclear batteries.C. decrease the size of nuclear batteriesD. reduce the damage to lattice structure.

3.Nuclear is not the only ______ to energy crisisA、solverB、solveC、solvingD、solution

4.Jae Kwon gave examples in Paragraph 4_________.A. to show chemical batteries are widely applied.B. to introduce nuclear batteries can be safely used.C. to describe a nuclear-powered system.D. to introduce various energy sources.

参考答案和解析
B
更多“核磁共振现象里的核指的是（） The meaning of nuclear in nuclear magnetic resonance is（）”相关问题

  • 第1题：

    The children stay in the nuclear family ____ they grow up and marry. Then they form. new nuclear families.

    A: because

    B: as

    C: until

    D: since


    参考答案：C

  • 第2题：

    共用题干
    The Family
    The structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.
    There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.
    The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.

    Another good title for this passage would be______.
    A: What Makes a Family?
    B: The Life of the Inuits
    C: Living With Hardship
    D: The Failure of the Nuclear Family

    答案：A
    解析：
    题干意为“下面哪个选项可以作为这篇短文另一个合适的标题？”该题为主旨题，短文开篇就提到了家庭结构，短文最后一句提到“不仅在北美洲，在全世界范围，家庭结构都会随着情况的不断变化而改变”，这也在谈论家庭结构，由此可见这篇短文的主题与家庭结构相关，由此可以进一步确认答案为A项“家庭的结构是什么”。
    题干意为“核心家庭的定义是什么？”该题为细节题，第一段的第三句话对核心家庭进行了定义：Until recently,the most common form in North America was the nu-clear family, consisting of a married couple with their minor children．该句意为“在此以前，北美洲最普遍的家庭形式为核心家庭，由一对夫妇和他们未成年的孩子构成”。由此可知A项 “由一对夫妇和他们未成年的孩子构成的家庭”是答案。
    题干意为“这篇文章最有可能出自哪里？”该题属于主旨题。该短文主题涉及家庭，因此最有可能出自人类学课本，所以A是正确的答案。
    题干意为“第一段的信息主要以何种方式陈述的？”根据第一段的陈述方式，并没有列出数据（A项）或者讲故事（B项），而是通过描述共性而阐述出核心家庭的概念。因此C项“指出相似性”是正确的答案。
    题干意为“mobility的词意是什么？”mobility是mobile“可移动的，机动的” 的名词形式。首先在短文中找到mobility存在的语境：（第二段）There are many parallels between the nuclear family in industrial societies, such as North America,and of families in societies such as that of the Inuits,who live inharsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh conditions ,mobility allows the family to hunt for food. For North Americans, the hunt for jobs and improved social status also requires mobility.mobility所在的上下文提到“核心家庭结构良好地适应于……的生活。在恶劣的条件下，……能让一个家庭吃饱饭，对北美洲人来说，找工作和提高社会地位同样需要……。”四个选项中，A项“金钱”,B项“随时准备迁居”,C项“组织，机构”,D项“技能，技巧”，显然B项“随时准备迁居”填入mobility所在的语境中合适，因此答案为B。

  • 第3题：

    inner nuclear membrane (内核膜)


    正确答案:内核膜面向核基质，与外核膜平行排列，其表面没有核糖体颗粒。

  • 第4题：

    nuclear lamina(核纤层)


    正确答案:位于细胞核内核膜下与染色质之间的、由中间纤维相互交织而形成的一层高电子密度的蛋白质网络片层结构。在细胞分裂过程中对核被膜的破裂和重建起调节作用。

  • 第5题：

    核设备疏水和排气系统﹝轻水堆﹞ nuclear component drain and vent system


    正确答案: 收集系统和设备引漏的疏水和排气时排出的不接触安全壳自由空间气体的反应堆冷却剂的系统。

  • 第6题：

    名词解释题
    nuclear localization signal, NLS (核定位信号)

    正确答案： 是另一种形式的信号肽，可位于多肽序列的任何部分。一般含有4～8个氨基酸，且没有专一性，作用是帮助亲核蛋白进入细胞核。入核信号与导肽的区别在于：
    ①由含水的核孔通道来鉴别；
    ②入核信号是蛋白质的永久性部分，在引导入核过程中，并不被切除，可以反复使用，有利于细胞分裂后核蛋白重新入核。有多种类型的核定位信号，这些信号都具有一个带正电荷的肽核心。
    解析： 暂无解析

  • 第7题：

    单选题
    While some military planners claimed that it would be possible to win a war fought with nuclear weapons, many scientists argued that such a war could not truly be won, because the fallout from nuclear warfare would create a nuclear winter and it also would be rendering the earth uninhabitable.
    A

    it also would be rendering the earth uninhabitable

    B

    rendering the earth uninhabitable

    C

    might have uninhabitably rendered the earth

    D

    render the earth uninhabitable

    E

    would also have rendered the earth uninhabitable


    正确答案： D
    解析：
    插入的内容和“create a nuclear winter”构成平行结构，故D项是正确的。

  • 第8题：

    单选题
    Which of the following is an appropriate title for this passage?
    A

    Japan's Nuclear Crisis Causes Fear in Europe.

    B

    The Chernobyl Disaster Helps Europe Better Understand Nuclear Power Energy.

    C

    German Governments Supports Nuclear Power Energy.

    D

    Germany Has Learnt a Lesson From Japan.


    正确答案： B
    解析：

  • 第9题：

    单选题
    After several nuclear disasters, a _____ has raged over the safety of nuclear energy.
    A

    quarrel

    B

    suspicion

    C

    verdict

    D

    controversy


    正确答案： D
    解析：
    句意：几次核灾难激起了一场关于核能的安全性的争论。controversy争论，辩论，所涉及的特别是社会、道德或政治问题。nuclear disasters和safety of nuclear energy形成对立关系，这种对立引起争论，因此D为正确答案。quarrel争论，强调以吵架、发生口角等形式引起的争论，不够正式。suspicion怀疑。verdict陪审团的判决，决定。

  • 第10题：

    名词解释题
    outer nuclear membrane (外核膜)

    正确答案： 外核膜面向细胞质基质，常附有核糖体，有些部位与内质网相连，因此在形态和性质上与内质网相似。实际上，外核膜可以看成是内质网膜的一个特化区。另外，细胞骨架成分，包括微管、肌动蛋白纤维和中间纤维常常与外核膜相连，起着固定细胞核并维持细胞核的适当形态的作用。
    解析： 暂无解析

  • 第11题：

    单选题
    What does the passage mainly discuss?
    A

    The acquisition of British Nuclear Fuels by Toshiba.

    B

    The acquisition of Westinghouse Electric by Toshiba.

    C

    Toshiba’s expansion in nuclear power business.

    D

    Toshiba’s embarking on nuclear power business.


    正确答案： D
    解析：
    主旨题。该段录音的首句为主旨句，指出“星期一，日本电子产品制造商东芝公司表示其正在购买核电站建造公司Westinghouse Electric”，然后说话者给出了购买的具体细节，包括收购价格、东芝公司是如何看待购买价格的、购买原因、意义以及售后事宜等等。由此可知，选项B（东芝公司收购Westinghouse Electric公司）的描述符合录音原文主要内容。

  • 第12题：

    单选题
    According to the passage, all the following statements about Eastern Europe are true EXCEPT ______.
    A

    they are eager to build new nuclear power plants

    B

    they have totally forgotten the Chernobyl accident 25 years ago

    C

    they have improved their nuclear power plants

    D

    they want energy independence


    正确答案： B
    解析：

  • 第13题：

    Nuclear is not the only ________ to energy crisis.

    A.solution

    B.solving

    C.solve

    D.solver


    正确答案：A

  • 第14题：

    共用题干
    The Family
    The structure of a family takes different forms around the world and even in the same society.
    The family's form changes as it adapts to changing social and economic influences.Until recently, the most common form in North America was the nuclear family,consisting of a married couple with their minor children.The nuclear family is an independent unit.It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies.Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so.In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.
    There are many parallels between the nuclear family in industrial societies,such as North
    America,and of families in societies such as that of the Inuits,who live in harsh environments.
    The nuclear family structure is well adapted to a life of mobility. In harsh conditions,mobility allows the family to hunt for food.For North Americans,the hunt for jobs and improved social status also requires mobility.
    The nuclear family was not always the North American standard.In a more agrarian time,the small nuclear family was usually part of a larger extended family.This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins.In North America today,there is a dramatic rise in the number of single-parent households.Twice as many households in the United States are headed by divorced, separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.

    According to the passage,which is the definition of a nuclear family?
    A:.A nuclear family is a married couple with their minor children.
    B: A nuclear family is a single father with minor children.
    C: A nuclear family concludes parents,grandparents,and children.
    D: A nuclear family concludes parents,children,and aunts and uncles.

    答案：A
    解析：
    主旨题。题干意为“下面哪个选项可以作为这篇短文另一个合适的标题？”。短文开篇就提到了家庭结构，短文最后一句意为“不仅在北美洲，在全世界范围，家庭结构都会随着情况的不断变化而改变。”由此可见这篇短文的主题与家庭结构相关，由此可以进一步确认答案为A“家庭的结构是什么”。


    细节题。题干意为“根据文章，哪个是核心家庭的定义？”。第一段的第三句话对于核心家庭进行了定义Until recently , the most common form in North American was the nu-clear family , consisting of a married couple with their minor children.该句意为“直到最近，北美洲最普遍的家庭形式为核心家庭，由一对夫妇和他们未成年的孩子构成”。由此可知A“核心家庭是由一对夫妇和他们未成年的孩子构成的家庭”是答案。


    主旨题。题干意为“这篇文章最有可能出自哪里？”。该短文主题涉及家庭，因此最有可能出自人类学课本，所以A是正确的答案。


    题干意为“第一段主要以何种方式陈述的？”根据第一段的陈述方式，并没有列出数据或者讲故事，而是通过描述共性而阐述出核心家庭的概念。因此C“指出相似性”是正确的答案。


    题干意为“mobility是什么意思？”mobility是mobile“可移动的，机动的”的名词形式。首先在短文中找到mobility存在的语境：第二段中“The nuclear family structure is well adapted to a life of mobility…the hunt for jobs and improved social status also re-quires mobility. ”mobility所在的上下文意为“核心家庭结构良好地适应于……的生活。在恶劣的条件下，……能让一个家庭吃饱饭，时北美洲人来说，找工作和提高社会地位同样需要……”四个选项中，A意为“钱”,B意为“随时准备迁居”，C意为“组织，机构”,D意为“技能，技巧”，显然B“随时准备迁居”填入mobility所在的语境中合适，因此答案为B。

  • 第15题：

    nuclear protein (核蛋白)


    正确答案:是指在细胞质内合成，然后运输到核内起作用的一类蛋白质。如各种组蛋白、DNA合成酶类、RNA转录和加工的酶类、各种起调控作用的蛋白因子等。核蛋白一般都含有特殊的氨基酸信号序列，起蛋白质定向、定位作用。

  • 第16题：

    核热点因子 nuclear hot spot factor


    正确答案: 只考虑堆芯中子通量密度分布不均匀等核不利因素后，热点的热流密度与堆芯平均热流密度的比值。

  • 第17题：

    单选题
    Although no proof yet exists of the electromagnetic disturbances observed being the results of nuclear weapons testing, diplomats are treating the situation with utmost delicacy.
    A

    of the electromagnetic disturbances observed being the results of nuclear weapons testing

    B

    regarding the observed electromagnetic disturbances having been the results of nuclear weapons testing

    C

    that the electromagnetic disturbances observed were the results of nuclear weapons testing

    D

    that nuclear weapons testing resulted in the electromagnetic disturbances having been observed

    E

    that the electromagnetic disturbance observed were resulting from nuclear weapons testing


    正确答案： C
    解析：
    A、B项不符合习惯表达；D项的表达与句意不符；E项中“disturbance…were”主谓不一致，故本题选C项。

  • 第18题：

    名词解释题
    nuclear expotr-signal,NES (核输出信号)

    正确答案： 作为核内物质输出细胞核的信号，帮助核内的某些分子迅速通过核孔进入细胞质。另外，有些蛋白并非是核内常驻“人口”，通常要往返于核质和胞质之间，这些穿梭蛋白既有NLS又有NES。
    解析： 暂无解析

  • 第19题：

    单选题
    In the second paragraph, the author mainly discusses ______.              .
    A

    the nuclear accidents in Japan last March

    B

    nuclear power policies in Germany

    C

    German attitude towards nuclear power

    D

    the safety levels of nuclear power plants in Germany


    正确答案： C
    解析：

  • 第20题：

    名词解释题
    nuclear splicing (核剪接)

    正确答案： 是指发生在细胞核中，主要是对hnRNA中内含子的剪接。这种剪接有三个主要特点∶一是在pre-mRNA中内含子与外显子间有特征性序列，即GT-AG规则；第二是剪接过程中需要snRNA参与，并要形成剪接体；第三要形成套索结构。
    解析： 暂无解析

  • 第21题：

    单选题
    According to Nishida, the current buying decision by Toshiba is a response to ______
    A

    fierce competition in nuclear power business

    B

    failure in other businesses like semiconductors and DVD players

    C

    popularity of nuclear power around the world

    D

    expected increase in market demand for nuclear power generation


    正确答案： A
    解析：
    因果关系的判断。关于东芝公司购买Westinghouse的原因，录音中引用东芝公司总裁的话指出“By 2020 the market for nuclear power generation is expected to grow 50 percent compared to 2005”，表明该公司预计市场对核能电力的需求会有很大提高。由此可知此次收购是对这一挑战的回应。因此选项D为正确答案。

  • 第22题：

    名词解释题
    nuclear lamina(核纤层)

    正确答案： 位于细胞核内核膜下与染色质之间的、由中间纤维相互交织而形成的一层高电子密度的蛋白质网络片层结构。在细胞分裂过程中对核被膜的破裂和重建起调节作用。
    解析： 暂无解析

  • 第23题：

    名词解释题
    核区（nuclear region）

    正确答案： 又称核质体，指原核生物所特有的无核膜结构、无固定形态的原始细胞核。其成分是一个大型环状双链DNA分子，它是细菌负载遗传信息的主要物质基础。
    解析： 暂无解析

  • 第24题：

    单选题
    Hiper is being planned ______.
    A

    to compete with NIF

    B

    because NIF experiment, even successful, would not produce enough energy to run a nuclear fusion plant

    C

    to use the same laser technology but on a larger scale

    D

    to demonstrate the feasibility of nuclear fusion


    正确答案： B
    解析：
    题目问的是：Hiper正在被设计的原因是什么？根据文章的倒数第7段中的“This is right for the demonstration of the physics ‘proof of principle’, but does not meet the requirement of a laser fusion power plant.”可知，试验很好地演示了物理原理的证明，但是不能满足激光核聚变动力装置的需求，也就是说没有足够的能量来运作核聚变装置。故选B。

相关内容