[单选]
Examine the description of the MARKS table:

SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.
Examine this SELECT statement based on the MARKS table:

What is the result of the SELECT statement?（）

A . The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject.
B . The statement returns an error at the SELECT clause.
C . The statement returns an error at the WHERE clause.
D . The statement returns an error at the ORDER BY clause.

角色行为群植（树群） You executed the following command to drop a user： DROP USER scott CASCADE； Which two statements regarding the above command are correct？（） All the objects of scott are moved to the Recycle Bin.。 Any objects in the Recycle Bin belonging to scott are purged.。 All the objects owned by scott are permanently dropped from the database.。 All the objects of scott in the Recycle Bin must be purged before executing the DROP command.。 Any objects in the Recycle Bin belonging to scott will not be affected by the above DROP command.。个人跨统筹地区就业的，其基本养老保险关系随本人转移，达到法定退休年龄时，基本养老金分段计算、分别支付。硅酸盐的结构特点

Examine the description of the MARKS table:

SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.
Examine this SELECT statement based on the MARKS table:

What is the result of the SELECT statement?（）

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[单选] Examine the description of the MARKS table: SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: What is the result of the SELECT statement?（）

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[单选]
Examine the description of the MARKS table:

SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.
Examine this SELECT statement based on the MARKS table:

What is the result of the SELECT statement?（）