更多“What is the value of 2×4-3 ?____”相关问题
  • 第1题:

    Q4 :

    int iVal1 = 0, iVal2 = 0;

    int * ipVal;

    ipVal = &iVal1; What is the Value of ipVal = *ipVal =

    ipVal = (int*)iVal1; What is the Value of ipVal = *ipVal =

    iVal2 = (int)&iVal1; What is the Value of ipVal = *ipVal =


    正确答案:
     

  • 第2题:

    What is the same meaning of location value? ()

    • A、Different value
    • B、Different value of same goods at the different place
    • C、Different goods
    • D、Different value of different goods at the same place

    正确答案:B

  • 第3题:

    int index = 1;   int foo = new int ;   int bar = foo [index];   int baz = bar + index;   What is the result?()

    • A、 Baz has the value of 0
    • B、 Baz has the value of 1
    • C、 Baz has the value of 2
    • D、 An exception is thrown.
    • E、 The code will not compile.

    正确答案:B

  • 第4题:

    单选题
    If x-y = 3 and x+y = 5, what is the value of y?
    A

    -4

    B

    -2

    C

    -1

    D

    1

    E

    2


    正确答案: C
    解析:
    Eliminate y by adding corresponding sides of the two equations: x-y=3, x+y=5, therefore 2x+0=8, so x=8/2=4. Since x= 4 and x -y = 3, then 4-y = 3, so y = 1.

  • 第5题:

    单选题
    int index = 1;   int foo = new int ;   int bar = foo [index];   int baz = bar + index;   What is the result?()
    A

     Baz has the value of 0

    B

     Baz has the value of 1

    C

     Baz has the value of 2

    D

     An exception is thrown.

    E

     The code will not compile.


    正确答案: A
    解析: 暂无解析

  • 第6题:

    问答题
    If x+y=36, what is the value of xy?  (1) y-x=14  (2) y=2x+3

    正确答案: D
    解析:
    分别将两个条件代入题目,可以计算出x=11,y=25,故本题应选D项。

  • 第7题:

    填空题
    If a is 2/5 of b, b is 1/10 of c, and c > 0, then what is the value of a/c?____

    正确答案: 1/25 or 0.04
    解析:
    我们可以用假设代入法或代数法。第一,假设法假设c = 100,因为b为c的十分之一,b= (1/10)(100) = 10,又因为a是b的五分之二,所以a = (2/5)(10) = 4。因此a/c = 4/100 = 1/25 或0.04。第二,代入法。因为a是b的五分之二,所以a = (2/5)b,又因为b为c的十分之一,所以c = 10b,因此得出下面的计算过程,故a= 1/25 或0.04。

  • 第8题:

    单选题
    With the DSCP value fo "101110", what does the "11" in bits 1 and 2 indicate ?()
    A

    AF Class

    B

    Drop Probability

    C

    CS(Class Selector Value )

    D

    PHB (Per-Hop Behavior )

    E

    IP Precedence

    F

    Queue Depth


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    If a-b = -4, what is the value of a2 -2ab + b2?
    A

    -32

    B

    -16

    C

    0

    D

    16

    E

    32


    正确答案: A
    解析:
    分解多项式a2- 2ab + b2 = (a-b) 2=16。

  • 第10题:

    单选题
    By default, what does a Juniper Networks router set the BGP origin code to when originating theroute?()
    A

    IGP (Value 0)

    B

    EGP (Value 1)

    C

    Incomplete (Value 2)

    D

    It depends on the route's source.


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    Click the Exhibit button. What is the result?()
    A

    Value is: 8

    B

    Compilation fails.

    C

    Value is: 12

    D

    Value is: -12


    正确答案: D
    解析: 暂无解析

  • 第12题:

    填空题
    If((6-3)r+4)/2= 13, what is the value of r?____

    正确答案: 22/3
    解析:
    ((6-3)r +4)/2=13,等式两边乘上2,(6-3)r + 4 = 26,(6-3)r = 22,3r = 22,r =22//3。

  • 第13题:

    public class test(  public static void main(string[]args){  string foo = args [1];  string foo = args [2];  string foo = args [3];  }  )  And command line invocation: Java Test red green blue   What is the result?()  

    • A、 Baz has the value of “”
    • B、 Baz has the value of null
    • C、 Baz has the value of “red”
    • D、 Baz has the value of “blue”
    • E、 Bax has the value of “green”
    • F、 The program throws an exception.

    正确答案:F

  • 第14题:

    With the DSCP value fo "101110", what does the "11" in bits 1 and 2 indicate ?()

    • A、AF Class
    • B、Drop Probability
    • C、CS(Class Selector Value )
    • D、PHB (Per-Hop Behavior )
    • E、IP Precedence
    • F、Queue Depth

    正确答案:B

  • 第15题:

    By default, what does a Juniper Networks router set the BGP origin code to when originating theroute?()

    • A、IGP (Value 0)
    • B、EGP (Value 1)
    • C、Incomplete (Value 2)
    • D、It depends on the route's source.

    正确答案:A

  • 第16题:

    填空题
    If the function f is defined by f(x)= (2x-4)/3 for what value of x does f(x) = 18?____

    正确答案: 29
    解析:
    因为f(x)= (2x-4)/ 3=18,2x - 4 = 54,x = 29。

  • 第17题:

    问答题
    What is the value of x-y?  (1) (x-y)2=25  (2) 4x=4 (y+3)

    正确答案: B
    解析:
    条件1不能确定x-y的值,由条件2可知,x-y=3,故本题选B项。

  • 第18题:

    问答题
    In isosceles triangle ABC what is the value of∠C?  (1) The measure of∠B is 47.  (2) The measure of∠A is 96.

    正确答案: B
    解析:
    若∠B=47,不知∠C为顶角或为底角,故不能确定;若∠A=96,且三角形内角和小于180,故可以确定∠C=47,故本题选B项。

  • 第19题:

    问答题
    If C=5r/(2s) and s≠0, what is the value of C?  (1) r=4s  (2) r=2/5

    正确答案: A
    解析:
    若r=4s,则C=10;若r=2/5,不能计算出C的值,故本题选A项。

  • 第20题:

    单选题
    What is the default value of the SPT threshold in Cisco routers?()
    A

    0

    B

    1

    C

    2

    D

    4

    E

    16

    F

    infinity


    正确答案: C
    解析: 暂无解析

  • 第21题:

    填空题
    If 10a+4b=32 and 9a+2b=24, what is the value of a+2b?____

    正确答案: 8
    解析:
    两式相减得出(10a+4b) -(9a+2b)=a+2b=8。

  • 第22题:

    填空题
    If 6w is an integer and 21/2 < 5w < 31/2, what is the value of w?____

    正确答案: 2/3 or 0.666
    解析:
    因为根据题干2/2 < 5w < 3/2,则5/2 < 5w < 7/2,5/10 < w <7/10,又因为6w是正数,所以w一定是1/6的倍数,所以w的值为4/6 = 0.666.

  • 第23题:

    填空题
    What is the total value of the contract?____.

    正确答案: $30,000
    解析:
    数字计算题。本题考查合同中商品的总价。单价为30.00,数量为1,000,相乘得到30,000。此处应填$30,000。