此题为判断题(对,错)。
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:
EJB technology enables rapid and simplified development of distributed,(19),secure and portable applications based on Java technology.
A.stand-alone
B.integration
C.transactional
D.international
第3题:
1、关于Henry系数,下列说法不正确的是:
A.Henry系数数值与组成的表示方法有关
B.Henry系数的单位与组成的表示方法有关
C.Henry系数会随温度的改变而改变
D.浓度发生变化必然导致Henry系数也发生变化
第4题:
A、interactive
B、indifferent
C、interrogative
D、international
第5题:
James _________ action movies.
第6题:
关于Henry系数,下列说法不正确的是:
A.Henry系数数值与组成的表示方法有关
B.Henry系数的单位与组成的表示方法有关
C.Henry系数会随温度的改变而改变
D.浓度发生变化必然导致Henry系数也发生变化