单选题______A has to be B must be C should be D ought to be

题目
单选题
______
A

has to be          

B

must be      

C

should be    

D

ought to be

相似考题

1.I am listening. But you ().A.need be listeningB.should be listeningC.need have been listeningD.ought be listening

2.It is advisable that he ________ a seat in the train to Beijing.A may reserveB ought to reserveC reserveD must reserve

3.Be quick ! They ( ) for us at the school gate now.A、ought to have waitedB、must waitC、must have waitedD、must be waiting

4.He ought to have handed in the paper yesterday. That’s what he ____.A. should doB. should be doingC. should have doneD. should have

参考答案和解析
正确答案： B
解析：
汽油必须从原油中提炼.这是外在因素.因此用has to。
更多“单选题______A has to be B must be C should be D ought to be”相关问题

  • 第1题：

    She ( ) to Vancouver before, She is very familiar with the city.

    A、should have been

    B、ought to have been

    C、must have been

    D、can not have been


    参考答案：C

  • 第2题：

    He didn't do well in the exam. He______hard at his lessons

    A、must have worked

    B、ought to have worked

    C、would have worked

    D、has worked


    参考答案：B

  • 第3题：

    It ______ last night, for the ground is wet.

    A、must rain

    B、must be going to rain

    C、must have rained

    D、ought to rain


    参考答案：C

  • 第4题：

    She advised that I _______ in bed for a few days.

    A、rested

    B、should rest

    C、must rest

    D、ought to rest


    参考答案：B

  • 第5题：

    Being a good leader，one ______ to think more of others. A. must B. may C. ought D. should


    正确答案：C

  • 第6题：

    A requirements specification is （ ）.

    A.a rough list of things that the proposed software ought to do
    B.a precise list of things that the proposed software ought to do
    C.a formal list of things that the proposed software must do
    D.an estimate of the resources (time, money, personnel, etc.) which will be required to construct the proposed software


    答案：C
    解析：
    解析：翻译：需求规格说明书是（ ）。A．软件需要完成的工作的一个粗略的文档B．软件需要完成的工作的一个精确的文档C．软件需要完成的工作的一个正式的文档D．用于估算（时间、成本、人员等）资源的文档，这种资源的估算用于指导软件的开发

  • 第7题：

    A company has just implemented a disaster recovery plan in which critical business must be restored in a four hour window.  Which of the following methods should be used to backup theservers？（）

    • A、Incremental backup
    • B、Data only backups
    • C、SAN replication
    • D、Full backup

    正确答案:C

  • 第8题：

    单选题
    You need to design a strategy for identifying the number of instances that any one SQL Server 2005 computer will support. What should you do？（）
    A

    Specify that each server must have one instance for each customer.

    B

    Specify that each server must each have only one instance.

    C

    Specify that each server must have one instance for each database that is hosted on that server.

    D

    Specify that each server must have one instance for each customer who has one or more databases that are hosted on that server.


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    She ought to stop work;she has a headache because she（）too long.
    A

    read

    B

    had read

    C

    is reading

    D

    has been reading


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    A loaded hopper barge with independent tanks has a placard，with alternating red and white quadrants，on each side and end. Which statement concerning this barge is TRUE?（）
    A

    The cargo will spontaneously ignite if released to the atmosphere

    B

    You must operate this barge as a lead barge

    C

    The barge should be spotted as far away from the towboat as possible

    D

    The barge must be in a protected position within the tow


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    A company has just implemented a disaster recovery plan in which critical business must be restored in a four hour window.  Which of the following methods should be used to backup theservers？（）
    A

    Incremental backup

    B

    Data only backups

    C

    SAN replication

    D

    Full backup


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    You work as the enterprise exchange administrator at Xxx .The Xxx network consists of a domain named xxx .The Xxx network has a mail server named XXX-EX01.What actions must you take to do an unattended installation of Exchange Server 2010 server on XXXEX01？（）
    A

    You should add recipient filter.

    B

    You should add create Send connectors.

    C

    You should run setup /ps.

    D

    You should add setup.com in the script.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    It is time we ___.

    A.left

    B.leave

    C.should leave

    D.ought to leave


    正确答案：A

  • 第14题：

    You look very tired. You ____ too hard these days.

    A. could have worked

    B. ought to have worked

    C. should have worked

    D. must have worked


    答案：A

  • 第15题：

    When you go abroad, do you ______ take your passport?

    A、have to

    B、ought to

    C、need

    D、must


    参考答案：A

  • 第16题：

    A requirements specification is（ ）.

    A.a rough list of things that the proposed software ought to do

    B.a precise list of things that the proposed software ought to do

    C.a formal list of things that the proposed software must do

    D.an estimate of the resources （time,money,personnel,etc）which will be required to construct the proposed software .


    正确答案：C

  • 第17题：

    In America, which of the following is NOT the requirement for the students wanting to get their driver's license?

    A. They must be 16 years old.

    B. They should go to have their driver's test.

    C. They must reach the proper age to drive.

    D. They ought to do well in their driver's course.


    正确答案：A

    54．答案为A  从最后一段第一句可看出在美国，不是每个州都要求驾驶员年满16岁，B、C、 D选项是必需的条件。

  • 第18题：

    She ought to stop working.She has a headache because she( )too long.

    A.has been reading
    B.had read
    C.is reading
    D.read

    答案：A
    解析：
    考查现在完成进行时。从第一句话She ought to stop working可知，她从过去读书到现在都没停过，故本题用现在完成进行时。分析选项可知，符合题意的只有A项。故本题选A。句意：她应该停下来休息一会，读书太久会头疼。

  • 第19题：

    An administrator only has one public IP address that must be shared among five employees. Which of the following network schemes should be used?（）

    • A、SNAT
    • B、SNAP
    • C、NAC
    • D、MPLS

    正确答案:A

  • 第20题：

    单选题
    A system has two configured fibre channel cards， one of which， fsc0， has failed and must be replaced.  Which command should an administrator use to remove the card device and attached child devices？（）
    A

    rmdev -Rdl fcs0

    B

    rmdev -cdl fcs0

    C

    rmdev -cdl fscsi0

    D

    rmdev -Rdl fscsi0


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    A natural disaster has occurred and the administrator must return the network to a healthy status.Which of the following should the administrator do in this case?（）
    A

    Follow the emergency action plan.

    B

    Wait for an issue to be reported.

    C

    Establish a new baseline.

    D

    Determine if escalation is necessary.


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    An administrator only has one public IP address that must be shared among five employees. Which of the following network schemes should be used?（）
    A

    SNAT

    B

    SNAP

    C

    NAC

    D

    MPLS


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you，you should secure the line（）.
    A

    to the base of the foremast

    B

    to the forward-most bitts

    C

    to the forward part of the deckhouse

    D

    at the stern


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    What is the author’s argument in this essay?
    A

    Educators who advocate a rounded-education should be supported.

    B

    It is natural for science students to learn less liberal arts.

    C

    Science students ought to have enough knowledge about society.

    D

    Technical training must be reinforced in science education.


    正确答案： B
    解析：
    主旨大意题。作者在文章首段就开门见山地指出，理科生很容易脱离人文和社会学研究。该段尾句揭示了文章主旨：如果科学家想要解决社会问题，就要对政治、经济和文化领域有更多的了解，尽管这可能意味着他们要少学一些科学知识。接下来又分析了英国理科教育中存在的不合常理之处，并以人口过剩问题为例，指出由于缺乏人文知识，科学家在解决问题的过程中容易忽略社会因素。由此可以判断，作者论述的观点是科学家想要更好地解决问题就要先更好地了解社会，故答案为C项。选项A项只是作者用于证明论点的一个论据，与题意不符，可排除。B、D两项不是作者观点，故排除。

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