更多“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?____”相关问题
  • 第1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:A

  • 第2题:

    public class test (   public static void main(string args) {   int 1= 0;   while (i) {   if (i==4) {   break;  }   ++i;  }   }   )   What is the value of i at line 10?()

    • A、 0
    • B、 3
    • C、 4
    • D、 5
    • E、 The code will not compile.

    正确答案:E

  • 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:

    1. int I=1, j=0  2.    3. switch(i)  {  4. case 2:  5. j+=6;  6.    7. case 4:  8. j+=1;  9.    10. default:  11. j +=2;  12.    13. case 0:  14. j +=4;  15. }  16.      What is the value of j at line 16?()

    • A、 0
    • B、 1
    • C、 2
    • D、 4
    • E、 6

    正确答案:A,E

  • 第5题:

    单选题
    What is the smallest integer value of x that satisfies the inequality 4-3x < 11?
    A

    -3

    B

    -2

    C

    -1

    D

    0

    E

    1


    正确答案: A
    解析:
    Solution 1: If 4-3x < 11, then -3x < 7, so x > -7/3. Since -7/3 is between -2 and -3, the smallest integer value of x that satisfies this inequality is -2. Solution 2: Plug each of the answer choices for x, starting with A., into 4-3x < 11 until you find one that makes the inequality a true statement. Choice A. gives 4-3(-3) < 11, 13 < 11 which is not a true statement. Choice B. gives 4-3(-2) < 11, 10 < 11 which is true, so there is no need to continue.

  • 第6题:

    单选题
    1. public class test (  2. public static void main(string args[]) {  3. int 1= 0;  4. while (i)  {  5. if (i==4) {  6. break;  7. }  8. ++i;  9. }  10.    11. }  12. )   What is the value of i at line 10?()
    A

     0

    B

     3

    C

     4

    D

     5

    E

     The code will not compile.


    正确答案: E
    解析: 暂无解析

  • 第7题:

    单选题
    If 2x-3y = 11 and 3x+15 = 0, what is the value of y?
    A

    -7

    B

    -5

    C

    1/3

    D

    3

    E

    10


    正确答案: B
    解析:
    First solve the equation that contains one variable. Since 3x+15 = 0, then 3x = -15, so x = -15/3 = -5. Substituting -5 for x in the other equation, 2x-3y = 11, gives 2(-5)-3y = 11 or -10-3y = 11. Adding 10 to both sides of the equation makes -3y = 21, so y = -21/3 = -7.

  • 第8题:

    单选题
    If no metric is specified for the routes being redistributed into IS-IS, what metric value is assigned to the  routes?()
    A

     0

    B

     1

    C

     10

    D

     20


    正确答案: B
    解析: 暂无解析

  • 第9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10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11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12题:

    单选题
    If a and b are positive integers such that (a-4)(b-5) = 0, what is the least possible value of a + b?
    A

    5

    B

    6

    C

    8

    D

    10

    E

    11


    正确答案: A
    解析:
    如果(a-4)(b-5) = 0,所以(a-4) = 0或(b-5) =0,或两者都等于0,a = 4 或b = 5.,如果要使a + b的值最小,我们应该假设a=4,那么b可以为任何值,又因为b的值为正整数,所以b的最小值为1,所以a + b最小的可能值为4+1=5。

  • 第13题:

    int I=1, j=0   switch(i) {   case 2:   j+=6;   case 4:   j+=1;    default:    j +=2;   case 0:   j +=4;   }   What is the value of j at line 16?()

    • A、 0
    • B、 1
    • C、 2
    • D、 4
    • E、 6

    正确答案:A,E

  • 第14题:

    If no metric is specified for the routes being redistributed i nto IS - IS, what metric value is assigned to the routes?()

    • A、20
    • B、10
    • C、0
    • D、1

    正确答案:C

  • 第15题:

    1. public class test (  2. public static void main(string args[]) {  3. int 1= 0;  4. while (i)  {  5. if (i==4) {  6. break;  7. }  8. ++i;  9. }  10.    11. }  12. )   What is the value of i at line 10?()

    • A、 0
    • B、 3
    • C、 4
    • D、 5
    • E、 The code will not compile.

    正确答案:E

  • 第16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17题:

    问答题
    If 5a=9b=15c, what is the value of a+b+c?  (1) 3c-a=5c-3b  (2) 6cb=10a

    正确答案: B
    解析:
    通过计算可知,由条件1无法计算出a+b+c的具体值;由条件2可以计算出a+b+c的具体数值,17或0,故本题选B项。

  • 第18题:

    单选题
    public class test (   public static void main(string args) {   int 1= 0;   while (i) {   if (i==4) {   break;  }   ++i;  }   }   )   What is the value of i at line 10?()
    A

     0

    B

     3

    C

     4

    D

     5

    E

     The code will not compile.


    正确答案: E
    解析: 暂无解析

  • 第19题:

    填空题
    If a and b are distinct integers such that ab<1 and b≠0, what is the greatest possible value of a/b?____

    正确答案: 0
    解析:
    因为a和b是不同的整数,ab<1,由此可知a和b的乘积要么为负,要么为0,所以a/b的最大值为0。

  • 第20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: D
    解析: 暂无解析

  • 第21题:

    单选题
    What is the least possible value of (x+1)2 if -2≤x≤3?
    A

    -2

    B

    3

    C

    -1

    D

    0

    E

    1


    正确答案: E
    解析:
    Since (x+1) 2 is the square of a number, the least possible square of a real number must be 0.

  • 第22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23题:

    问答题
    What is the value of y?  (1) y2+8y+16=0  (2) y<0

    正确答案: A
    解析:
    由y2+8y+16=0,可知y=-4;由条件2无法判断y的值,故本题选A项。