What is the correct order of the following commands if you wanted to restore datafile 4， which was accidentally removed from the file system？（）   a. sql ’alter database datafile 4 online’ b. restore datafile 4 c. recover datafile 4  d. sql ’alter databas

题目

What is the correct order of the following commands if you wanted to restore datafile 4， which was accidentally removed from the file system？（）   a. sql ’alter database datafile 4 online’ b. restore datafile 4 c. recover datafile 4  d. sql ’alter database datafile 4 offline’ e. startup  f. shutdown

  • A、 a， c， b， d
  • B、 d， b， c， a
  • C、 f， d， b， c， a， e
  • D、 c， a， b， d， f
  • E、 a， b， d， e
相似考题

1.(), we were not going to make any concessions to his unreasonable demands.A.What may comeB.Come what mayC.May what comeD.What come

2.What is antonymy and what are its different types?

3.Utterance meaning in a face－to－face communication refers to().A、what the speaker has intended to convey in what is saidB、what what is said normally meansC、what the hearer has understood on the basis of what is saidD、the associative meaning words have

4.When ________, John did not reply.(A) he asking what his name was(B) was asked what his name was(C) asking what John’s name was(D) asked what his name was

更多“What is the corr”相关问题

  • 第1题：

    Yes,_____is difficult to find a job nowadays, but_____is more difficult is try to find such a job with a high salary but few things to do.

    A、it, it.

    B、what, what.

    C、it, what.

    D、what, it. C


    参考答案：C

  • 第2题：

    27． Radio and television are quite useful because you can __________ ．

    A． see what is happening in the world

    B． hear what is happening to the world

    C． know what the world is like

    D． see what the people on the earth are doing'


    正确答案：C
    27.C【解析】A.B.D三选项都只涉及到看或听一方面，故选c.

  • 第3题：

    I want to know().

    A. what is his name

    B. what his name is

    C. what his name is


    参考答案：C

  • 第4题：

    _______ useful book it is!

    A.What an

    B.How a

    C.What a

    D.What


    正确答案：C

  • 第5题：

    -________?

    -It's Sunday.

    A、What day is it today

    B、What date is it today

    C、What's the date

    D、What's day


    参考答案：A

  • 第6题：

    what do you know about “SOPEP”?what is VRP , and what is VCP ?


    正确答案：VRP is vessel Response plan ; and VCP is Non-tanker vessel contingency plan . VRP is required oil pollution emergency plan made according to the requirement of oil pollution act 1990 of US ,which is a law ruling the tanker vessels sailing in the waters under the management of the US .in compliance with the legislation of the california state of the US ,all the nontanker vessels should prepare vessel contingency plan .

  • 第7题：

    If there were only one question left ,what would it most probably be?

    A.What was your childhood dream?

    B.What is your biggest achievement?

    C.What is your parents view of you?

    D.What was your handest expenrience in the war?


    正确答案：B

  • 第8题：

    ( ) beautiful car he is riding ( ).
    A. What a …on B. What…in
    C. How…in D. What a …in


    答案：D
    解析：

  • 第9题：


    A.B=软件工程ORR. C=S. CA.ND R. D=S. D
    B.B=‘软件工程’ORR. C=S. CA.NDR. D=S. D
    C.B=‘软件工程’ORR. C=S. CORR. D=S. D
    D.B=‘软件工程’A.ND R. C=S. C A.ND R. D=S. D

    答案：D
    解析：
    B的最长查询语句最短，因此可以并行执行，提高效率。

  • 第10题：

    健康计划的总体目标中的三个"W"指（）

    • A、who，what，when
    • B、what，when，why
    • C、who，what，which
    • D、what，when，where
    • E、when，where，which

    正确答案:A

  • 第11题：

    NTSD功能测试时，速度由（）参数决定。

    • A、Nom Speed
    • B、Duty Speed
    • C、Buffer/ETSDmm/s
    • D、Corr Speed

    正确答案:A

  • 第12题：

    单选题
    Before writing a book, the first thing is considering what to say.
    A

    you must first ponder what to say and what not to be said carefully

    B

    it’s extremely necessary that you know what to say

    C

    the first thing is to consider what to say

    D

    you must first ponder what to say and what not to say


    正确答案： B
    解析：
    该题考查的是主语“一致关系”。当before，when，while，if，unless，after等引导分词短语作状语时，这些状语的逻辑主语必须和主句的主语保持一致。因此D为正确答案。

  • 第13题：

    10． The most important thing is _________

    A． what do you learn

    B． what did you learn

    C． what you have learn

    D． what you learnt


    正确答案：D

  • 第14题：

    No one can be sure()in a million years.

    A、 what man will look like

    B、 what will man took like

    C、 man will look like what


    参考答案：B

  • 第15题：

    It is said in Australia there is more land than the government knows ___.

    A. it what to do wth

    B. what do it with

    C. what to do with it

    D. to do what with it


    正确答案：C

  • 第16题：

    -My watch is not working. ________?

    -It's ten past eleven.

    A、What time is it

    B、What's the time

    C、What time is it by your watch

    D、What is time by your watch


    参考答案：C

  • 第17题：

    下面哪些句子表示"真可惜,真遗憾!"()

    A、What a day!

    B、What a pity!

    C、What a shame!

    D、What the hell!


    参考答案：BC

  • 第18题：

    what is IMO ?what is ISO 9000?what is ISM ?what is SMS system ?


    正确答案：IMO is international maritime organization under the united nations . ISO9000 m\eans international standard organization ,an organization making the quality management standards and doing the quality audit service . ISM means international management code for the safe operation of ships and for pollution prevention .this is compulsory rule made by the IMO . The ISM code includes 16 chapters falling falling into two parts :implementation for part one ,and verification and certification for part one .the 16 chapters are : general ,safety and environment protection policy ,company responsibilities and authority ,designated persons ,master responsibility and authority ,resources and personnel ,development of plans for shipboard operation ,emergency preparedness , reports and analysis of non conformity ,accidents and hazardous occurrences , maintainence of the ship and equipment ,documentation ,company verification ,review and evaluation ,certification and verifications and control ,certification and periodical verification ,verification ,interim certification ,and forms of certificates .the last four chapters are newly added in the new version of ISM Code . SMS means safety management system ,and this system is mad based on the 16 elements of ISM Code ,which is a compulsory part SOLAS 74 .the shipowner or manager cannot get document of compliance (DOC) and SMC without audited safety management certificate (SMC) by class designated by the flag registry country adiministration .

  • 第19题：

    Which of the following may illustrate the difference between "competence" and__________ "performance"?

    A．What a person "knows" and what he/she "does".
    B．What a person "can do" and what he/she "does".
    C．What a person "does" and what he/she "knows".
    D．What a person "does" and what he/she "can do".

    答案：A
    解析：
    考查语言学知识。competence“语言能力”，指语言使用者对于语言规则系统的潜在意识；performance“语言运用”，指在具体场景中语言的实际运用，二者对应的分别为“knows”和“does”。故选A。

  • 第20题：

    ( ) beautiful Car he is riding ( )
    A What a …on
    B What…in
    C How..in
    D What a …in


    答案：A
    解析：

  • 第21题：

    GDCB更改以下那个参数，M1-7中最小强减距离值LS length min mm不会变化（）。

    • A、Nom Speed mm/s
    • B、Accel mm/s2
    • C、Jerk mm/s3
    • D、Corr Speed mm/sA

    正确答案:D

  • 第22题：

    将适当的词语填入括号内：Online  corr+（）

    • A、在线修改+
    • B、在线修改-
    • C、线路故障
    • D、线路正确

    正确答案:A

  • 第23题：

    在传播模型校正过程中，一般是调整参数使以下两个值的绝对值最小（）。

    • A、MeanError
    • B、RMSError
    • C、StD.Dev.Error
    • D、Corr.Coeff

    正确答案:A,B

  • 第24题：

    单选题
    股票之间的相关系数如下：Corr（A，B）=0.85；Corr（A，C）=0.60；Corr（A，D）=0.45。每种股票的期望收益率为8％，标准差为20％。如果投资者的全部资产现在由股票A组成，并且只被允许选取另一种股票组成资产组合，投资者将会选择（　　）。
    A

    A

    B

    B

    C

    C

    D

    D

    E

    信息不足，无法判断


    正确答案： B
    解析：
    既然所有的股票都有相同的期望收益率和标准差，应选择可以使风险最小的股票，即与股票A的相关性最小的股票。

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