A.imitating
B.imitate
C.imitates
D.imitation
第1题:
Examine the following commands and their output:SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 1050QL> UPDATE emp SET sal=sal+sal*1.2 WHERE ename=‘JAMES‘;1 row updated.SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 2310View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?()

A. Flashback logging is not enabled for the database.
B. The changes made to the table are not committed.
C. Supplemental logging is not enabled for the database.
D. The database is not configured in ARCHIVELOG mode.
第2题:
James _________ action movies.
第3题:
Father和Son是两个java类,下列哪一选项正确的标识出Father是Son的父类:
A.class Son implements Father
B.class Father implements Son
C.class Father extends Son
D.class Son extends Father
第4题:
A.CAN 2.0A,CAN 2.0C
B.CAN 2.0C
C.CAN 2.0B,CAN 2.0C
D.CAN 2.0A,CAM 2.0B
第5题:
第6题:
Father和Son是两个java类,下列哪一选项正确的标识出Father是Son的父类?()。
A.class Son implements Father
B.class Father implements Son
C.class Father extends Son
D.class Son extends Father