2018年计算机考研408统考真题及答案

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2018

1 40 2 80

1 S1S2F( )

1 S1a b

2 S2op

3 b op a

4 S1

S15, 8, 3, 2 2 S2*, - , + +

3 F() S1

A. -15 B. 15 C. -20 D. 20

2. Q S Q 1, 2, 3, 4, 5, 6 1 S

A. 1, 2, 5, 6, 4, 3 B. 2, 3, 4, 5, 6, 1

C. 3, 4, 5, 6, 1, 2 D. 6, 5, 4, 3, 2, 1

3. 12×12 M m

i, j C

N m

6, 6 N

A. 50 B. 51 C. 55 D. 66

4. T 2

T k T

A. 2k-1 B. 2k C. k2D. 2k-1

5. {a, b, c, d, e, f} 6, 3, 8, 2, 10, 4

A. 00, 1011, 01, 1010, 11, 100 B. 00, 100, 110, 000, 0010, 01

C. 10, 1011, 11, 0011, 00, 010 D. 0011, 10, 11, 0010, 01, 000

A. x1<x2<x5B. x1<x4<x5C. x3<x5<x4D. x4<x3<x5

A. 1, 5, 2, 3, 6, 4 B. 5, 1, 2, 6, 3, 4

C. 5, 1, 2, 3, 6, 4 D. 5, 2, 1, 6, 3, 4

8. 5 3 B

A. 15 B. 31 C. 62 D. 242

9. 7 HT H(k) = k % 7

22, 43, 15 HT

A. 1.5 B. 1.6 C. 2 D. 3

10. 8, 3, 9, 11, 2, 1, 4, 7, 5, 10, 6 1,

3, 7, 5, 2, 6, 4, 9, 11, 10, 8 1, 2, 6, 4, 3, 7, 5, 8, 11, 10, 9

A. 3, 1 B. 3,2 C. 5,2 D. 5,3

11. 6, 1, 5, 9, 8, 4, 7)

12.

A. B. C. D.

13. int x y FFFF FFDFH 0000

0041H x y x - y

A. x = -65, y = 41, x -y

B. x = -33, y = 65, x-y FFFF FF9DH

C. x = -33, y = 65, x-y FFFF FF9EH

D. x = -65, y = 41, x-y FFFF FF96H

14. IEEE 754

A. 1.0×2-126 B. 1.0×2-127 C. 1.0×2-128 D. 1.0×2-149

15. 32 (L ittle Endian)

A. C7 45 FC C0 FF FF FF B. C7 45 FC 0C FF FF FF

C. C7 45 FC FF FF FF C0 D. C7 45 FC FF FF FF 0C

16. x 1101 1000 x 1 1

A. 1110 1100 1110 1100 B. 0110 1100 1110 1100

C. 1110 1100 0110 1100 D. 0110 1100 0110 1100

17. DRAM r c 2K ×1 DRAM

r c

A. 2048 1 B. 64 32 C. 32 64 D. 1 2048

18. double A 2000H

A 0

sizeof(double) 1 2100H

A. 25 B. 32 C. 64 D. 100

19. R1 - R2 /

CF OF R1 = FFFF FFFFH R2 = FFFF FFF0H

CF OF

A. CF=0, OF=0 B. CF=1, OF=0

C. CF=0, 0F=1 D. CF=1, OF=1

20. 5 A~E

80ps 50ps 50ps 70ps 50ps

20ps CPU

A. 60 ps B. 70 ps C. 80 ps D. 100 ps

21.

. .

. . /

A. B.

C. D.

22. I/O

B. CPU

C. CPU

D. CPU

23.

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20181402801S1S2F()1S1ab2S2op3bopa4S1S15,8,3,22S2*,-,++3F()S1A.-15B.15C.-20D.202.QSQ1,2,3,4,5,61S3A.1,2,5,6,4,3B.2,3,4,5,6,1C.3,4,5,6,1,2D.6,5,4,3,2,13.12×12Mmi,jCNm6,6NA.50B.51C.55D.664.T2TkTA.2k-1B.2kC.k2D.2k-15.{a,b,c,d,e,f}6,3,8,2,10,4A.00,1011,01,1010,11,100B.00,100,110,000,0010,01C.10,1011,11,0...

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