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单选题If (c+1)2＝-b, which of the following statement could be true?I. c>0II. c＝0III. c<0A NoneB I onlyC III onlyD I and II onlyE I, II, and III

题目
单选题
If (c+1)2＝-b, which of the following statement could be true?I. c>0II. c＝0III. c<0
A

None

B

I only

C

III only

D

I and II only

E

I, II, and III

相似考题

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更多“If (c+1)2＝-b, which of the following statement could be true”相关问题

  • 第1题：

    Which statement is true about the frequency of OSPF LSA transmissions?()

    A.A

    B.B

    C.C

    D.D


    参考答案：D

  • 第2题：

    Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set ________．

    A.The cranes may be operated independently

    B.The cranes may be interconnected for twin operation

    C.When twinned，the crane rotation on the foundation assembly is unlimited

    D.All of the above


    正确答案：D

  • 第3题：

    Given the following expression about TextField which use a proportional pitch font.  TextField t = new TextField（"they are good"，40）；     Which statement is true？（） 

    • A、 The displayed string can use multiple fonts.
    • B、 The maximum number of characters in a line will be 40.
    • C、 The displayed width is exactly 40 characters.
    • D、 The user can edit the characters.

    正确答案:D

  • 第4题：

    Given the following code fragment：     public void create（） {     Vector myVect；     myVect = new Vector（）；      }  Which of the following statements are true？（） 

    • A、 The declaration on line 2 does not allocate memory space for the variable myVect.
    • B、 The declaration on line 2 allocates memory space for a reference to a Vector object.
    • C、 The statement on line 2 creates an object of class Vector.
    • D、 The statement on line 3 creates an object of class Vector.
    • E、 The statement on line 3 allocates memory space for an object of class Vector.

    正确答案:A,D,E

  • 第5题：

    Which two statements are true about terms in a routing policy?（）

    • A、A then statement is mandatory in a term
    • B、If a term does not contain a from statement, all routers match
    • C、If a term does not contain a from statement, the Junos OS will not commit
    • D、A then statement is not mandatory in a term

    正确答案:A,B

  • 第6题：

    单选题
    For the set of numbers 2,2,4,5, and 12, which statement is true?
    A

    Mean = Median

    B

    Mean > Mode

    C

    Mean < Mode

    D

    Mode = Median

    E

    Mean = Mode


    正确答案： A
    解析：
    For the set of numbers 2, 2, 4, 5, and 12, the mode is 2, the mean (or average) is age) is (2+2+4+5+12)/5 = 5 and the median or middle value in the list is 4. Hence, the mean is greater than the mode.

  • 第7题：

    单选题
    As to the bearing, of the following, which statement is not true?（）
    A

    ff overheat is found, the engine must be stopped for inspection

    B

    Much heat of the crankcase door indicates that the bearing is overheated

    C

    If bearing clearance is too large, knocking will be heard in the crankcase

    D

    If bearing clearance is too large or too small, the white metal may be melted


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following could NOT be true as the possible consequences of Japan’s joining the TPP?
    A

    It would increase the GDP of the TPP members.

    B

    It could transform the prospects of the TPP.

    C

    It would become conciliation between Japan’s warring political factions.

    D

    It would lead to a more liberalized transpacific trade relation.


    正确答案： A
    解析：
    从文章中第五段“Many of those groups are opposed to the TPP”可以看出不仅竞争党派存在反对加入TPP的声音，Mr. Noda自己的民主党派中也有反对者。因此可以推断如果日本加入TPP，政治派系之间达成党派之间或党派内部调解是不会发生的。选项C最符合题意。

  • 第9题：

    单选题
    As to the piston cooling, of the following, which statement is not true?（）
    A

    Because the piston is exposed to very high temperature, it must be cooled

    B

    The lower the piston cooling temperature is, the better it is

    C

    Both water and lube oil can be used as coolant

    D

    One of the piston cooling methods is vibration cooling, with better effect


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    public class Test{  public static void main（ String[] argv ）{  // insert statement here  }  }   Which statement， inserted at line 3， produces the following output？（）  Exception in thread “main” java.lang.AssertionError： true at Test.main（Test.java：3）
    A

     assert true；

    B

     assert false；

    C

     assert false ： true；

    D

     assert false == true；

    E

     assert false： false；


    正确答案： C
    解析： 暂无解析

  • 第11题：

    多选题
    Given the following code fragment：     public void create（） {     Vector myVect；     myVect = new Vector（）；      }  Which of the following statements are true？（）
    A

    The declaration on line 2 does not allocate memory space for the variable myVect.

    B

    The declaration on line 2 allocates memory space for a reference to a Vector object.

    C

    The statement on line 2 creates an object of class Vector.

    D

    The statement on line 3 creates an object of class Vector.

    E

    The statement on line 3 allocates memory space for an object of class Vector.


    正确答案： B,C
    解析： SL-275中指出：要为一个新对象分配空间必须执行new Xxx（）调用，new调用执行以下的操作： 
    1．为新对象分配空间并将其成员初始化为0或者null。 
    2．执行类体中的初始化。（例如在类中有一个成员声明int a=10；在第一步后a=0 ，执行到第二步后a=10）    
    3．执行构造函数。 
    4．变量被分配为一个到内存堆中的新对象的引用。

  • 第12题：

    单选题
    Which of the following is a TRUE statement?
    A

    Sound travels fastest through the hardest thing.

    B

    Sound travels at different speeds in different temperatures and in different media.

    C

    Sound travels fastest in hottest temperature.

    D

    Sound travels fastest in coldest temperature.


    正确答案： B
    解析：
    推断题。文章第四段第二句提到“It varies in other temperatures and in different media”，B项表述与之一致，为正确答案。选项A、C、D在文中都没有提及，因此排除。

  • 第13题：

    Is the following statement true or false?

    A significant change in the ownership of an existing audit client is a factor which makes it appropriate for the auditor to review the terms of engagement.

    A.True

    B.False


    正确答案：A

    Where there is a significant change in ownership of the company, ISA 210 Agreeing the Terms of Audit Engagements recommends that a new audit engagement letter is sent to avoid misunderstandings.

  • 第14题：

    Which of the following statements is NOT true?（）

    AThe Bishop's courts could punish by means of censure.

    BThe Bishop's courts could inflict corporal punishment.

    CThe Bishop's courts could punish by means of excommunication.

    DThe Bishop's courts could punish by mean of penance.


    B
    略

  • 第15题：

    Which of the following statements is NOT true?（）

    • A、The Bishop's courts could punish by means of censure.
    • B、The Bishop's courts could inflict corporal punishment.
    • C、The Bishop's courts could punish by means of excommunication.
    • D、The Bishop's courts could punish by mean of penance.

    正确答案:B

  • 第16题：

    public class Test{  public static void main（ String[] argv ）{  // insert statement here  }  }   Which statement， inserted at line 3， produces the following output？（）  Exception in thread “main” java.lang.AssertionError： true at Test.main（Test.java：3）  

    • A、 assert true；
    • B、 assert false；
    • C、 assert false ： true；
    • D、 assert false == true；
    • E、 assert false： false；

    正确答案:C

  • 第17题：

    单选题
    If a and b are integers and the sum of ab and b is even, which of the following could be true?Ⅰ. a and b are both odd.Ⅱ. a is even and b is odd.Ⅲ. a is odd and b is even.
    A

    Ⅰ only

    B

    Ⅱonly

    C

    Ⅲ only

    D

    Ⅰ and Ⅱ

    E

    Ⅰand Ⅲ


    正确答案： C
    解析：
    Plug-in. StatementⅠ：if a and b are both odd, says a=1 and b=3, then ab+b=6. Since the sum is even, statementⅠ is true. StatementⅡ：1et a=2 and b=3, then ab+b=9. Since the sum is odd, this statement is false. Statement Ⅲ：let a=3 and b=2, then ab+b=8, which is even. So both statement Ⅰand statementⅢ are true.

  • 第18题：

    单选题
    Evaluate the following statement：   Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement？（）
    A

     They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.

    B

     They are evaluated by the first WHEN clause. If the condition is true， then the row would be evaluated by the subsequent WHEN clauses.

    C

     They are evaluated by the first WHEN clause. If the condition is false， then the row would be evaluated by the subsequent WHEN clauses.

    D

     The INSERT statement would give an error because the ELSE clause is not present for support in case none of the WHEN clauses are true.


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
    A

    The cranes may be operated independently

    B

    The cranes may be interconnected for twin operation

    C

    When twinned，the crane rotation on the foundation assembly is unlimited

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which of the following is true about coral reefs?
    A

    They play a significant role in biodiversity.

    B

    They account for 25% of the marine life.

    C

    More than a quarter of marine life feed on them.

    D

    They are threatened by marine life and could be killed.


    正确答案： D
    解析：
    录音中提到“Coral reefs are extremely important for biodiversity, it provides habitats to over 25% of all marine life.”，意思是：珊瑚礁对生物多样性极度重要，它为超过25%的海洋生物提供栖息地。所以A项正确。另外，根据“coral bleaching is threatening many of the world’s coral reefs”(珊瑚礁白化正在威胁着世界上的许多珊瑚礁)可知，D项错误。

  • 第21题：

    单选题
    According to the passage, which of the following statement is TRUE?
    A

    Dickens loved to travel.

    B

    Dickens’ stories were mostly about his own childhood.

    C

    Dickens made a lot of money on his reading tours.

    D

    Dickens left school to write The Pickwick Papers.


    正确答案： D
    解析：
    由原文第三段中的“He went on very successful reading tours and earned a lot of money.”可知，C项正确。文章第三段提到那个时候因为没有收音机或电视，人们喜欢听作者在公共场合读书，所以他四处读书并挣了很多钱，并没有说他喜欢旅行，故A项错误；第一段中提到他的很多书都是关于穷人和他们的苦难的，而不是关于他自己的童年，故B项错误；原文第二段提到，又回到学校上了两年学，狄更斯15岁离开了学校，后来写了The Pickwick Papers，并没有说他是为了要写这本书而离开学校，故D项错误。

  • 第22题：

    单选题
    Which of the following statements is NOT true?（）
    A

    The Bishop's courts could punish by means of censure.

    B

    The Bishop's courts could inflict corporal punishment.

    C

    The Bishop's courts could punish by means of excommunication.

    D

    The Bishop's courts could punish by mean of penance.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    At 2200 you take the following loran readings: 9960-W-15064.5; 9960-Y-43954.8. Which statement is TRUE? （）
    A

    The current is flooding

    B

    You are being set to the left of the track

    C

    The set is towards the southwest

    D

    The drift is 0.6 knot.


    正确答案： A
    解析： 暂无解析

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