一、
(1) B (2) B (3) D (4) D (5) B (6) A (7) B (8) C (9) D (10) A
(11) D (12) C (13) A (14) B (15) D (16) C (17) B (18) A (19) A (20) A
(21) B (22) B (23) B (24) A (25) C (26) C (27) C (28) B (29) D (30) C
(31) D (32) C (33) C (34) D (35) B (36) B (37) A (38) A (39) C (40) B
(41) B (42) B (43) D (44) A (45) A (46) A (47) C (48) B (49) A (50) D
二、
1.[1] AUTOEXEC.BAT
2.[2] 外部
3.[3] COPY A:*.DAT PRN
4.[4] REN XYZ\*.BAK *.FOR
5.[5] ATTRIB WST.TXT +R
6.[6] SET DEVICE TO PRINT
[7] SET DEVICE TO SCREEN
7.[8] SET PROC TO ABC
[9] DO ZZ
8.[10] 设计科 2100 300
[11] 1100
[12] 1001 常胜
[13] 1350
[14] 孙海
[15] 600
9.[16] SEEK 20
[17] FOR 年龄=20
[18] REST
10.[19] 编号 INTO A
[20] A->（完）计算机基础教程网