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【单选题】
关于信息的理解,下列说法正确的是 ? ( )A.
信息即物质
B.
信息是事物运动状态与规律
C.
信息具有依附性
D.
信息即能量
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反馈参考答案：
举一反三
【单选题】You have a table named Student that contains 100 rows. Some of the rows have a NULL value in the FirstName column.You execute the following statement: DELETE FROM Student What Is the result?
A.
All rows in the table will be deleted.；
B.
All rows containing a NULL value in the FirstName column will be deleted.；
C.
You will receive an error message.；
D.
All rows and the table definition will be deleted.
【简答题】这所军校的目标是经过四年的学习与训练将这些年轻的军校生变成合格的军官。
【简答题】Translate a sentence by using the following expression make sth. out of sb./sth. 这所军校的目标是经过四年的学习与训练将这些年轻的军校生变成合格的军官。
【单选题】You execute a statement inside a transaction to delete 100 rows from a table. The transaction fails after only 40 rows are deleted. What is the result in the database?
A.
The table will be corrupted.；
B.
Forty (40) rows will be deleted from the table.；
C.
The transaction will restart.；
D.
No rows will be deleted from the table.
【单选题】You delete rows in a table named Order. The corresponding rows in the OrderItem table are automatically deleted. This process is an example of a/an:
A.
inherited delete.；
B.
cascade delete.；
C.
functional delete.；
D.
domino delete.
【简答题】构成疾病和证候临床表现的基本要素是（ ）
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