1. The following memory variable files have the extension:

d)。 master of engineering management

2. There are two remarks fields in the data table, and the contents of these fields are stored in:

B) the same. In FPT file.

3. The fields in the data table file are:

B) variables

4. In the data table, the widths of logic, date and comment fields are defined by the system as:

C) 1.8, any

5. The numerical field of the data table file needs 5 decimal places, so its width should be defined as at least:

C)7 digits

6. The data table file has been opened. Assuming that the "Date of Birth" field is a date type, the result of the following expression is not a date type:

C)DTOC (date of birth)

7. In the data table file of Visual FoxPro, the total length of each record is one byte more than the sum of the widths of each field defined by the user, which is used for:

A) storing a deletion mark

8. In the following operations, what cannot be achieved by using the Modify Structure command is:

D) delete some records in the data table.

9. Assume that the "marriage" field in the data table is logical (marriage is logical truth). If you want to display the situation of all unmarried employees, the command you should use is:

C) list of marriage or not

10. Data table file "Student table. DBF has gender (character type) and average score (number type) fields. If all the girls with an average score of over 90 and failing grades are displayed,

When recording, the command you should use is:

D) Gender = "Female" list. And ... (average score >; 90. Or average score

1 1. When the data table file is opened and the command SKIP-1 is executed, the command? The result of RECNO () is:

B) 1

12. Suppose there are 10 records in the data table * *. After executing the order, the order? The result of RECNO () is:

B) 10

13. Suppose the data table * * * has 30 records, and the current record number is 20. After executing the command list NEXT 6, the command? The result of RECNO () is:

B)25

14. Suppose there are 50 records in the data table * *. After executing the command DISPLAY ALL, the command? The result of RECNO () is:

C)5 1

15. There are 20 records in the current data table * *. If you insert a new record after the 10 record, the command you should use is:

There is something wrong with this answer. )

16. If there are fields such as Mathematics, Chinese, Physics, Chemistry, English and Total Score in the data table, they are all numerical data. If you need the total score of all students and add it to the total score field, the command to be used is:

C)C) Replace the total scores of all is with mathematics+Chinese+physics+chemistry+English.

17. If you want to restore several records deleted by the delete command, you should use:

A) recall order

18.zap command can delete the current data table file.

A) all records

19. The difference between the "Delete All" command and the ZAP command is that:

D) After deleting all records, you can use the RECALL command to restore them, but ZAP cannot restore them after deleting them.

20. A data table has 10 records, and the current record is 6. Execute the command SKIP 10 first, then execute the command? EOF (), after executing the last command, the displayed result is:

c)t。

2 1. Open an empty data table file and test it with the function RECNO (). The result is:

B) 1

Is it too much? weary

For the time being, give it to me if you need it.

hanhezahai@sina.com