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【判断题】
如果在定义视图的查询语句中,使用了聚合函数,或group by、 having子句,则不允许对视图进行插入或更新操作。( )
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】下列关于CD-ROM光盘的描述中,不正确的是()
A.
容量大
B.
保存时间长
C.
传输速度比硬盘慢
D.
可读可写
【单选题】If the interest rate is 7 percent on euro deposits and 5 percent on dollar deposits, and if the dollar is expected to appreciate at a 4 percent rate, _________
A.
euro deposits have a higher expected return than dollar deposits.
B.
the expected return on euro deposits in terms of dollars is 11 percent.
C.
the expected return on dollar deposits in terms of euros is 1 percent.
D.
the expected return on euro deposits in terms of dollars is 3 percent.
E.
the expected return on dollar deposits equals the expected return on euro deposits.
【判断题】物体上各结构的尺寸,一般只标注一次,并应标注在反映该结构最清晰的图形上。
A.
正确
B.
错误
【判断题】要重写父类的方法,使用关键词overload
A.
正确
B.
错误
【单选题】As the relative expected return on dollar deposits increases, _________
A.
foreigners will want to hold fewer dollar deposits and more foreign deposits.
B.
Americans will want to hold more dollar deposits and less foreign deposits.
C.
Americans will want to hold fewer dollar deposits and more foreign deposits.
D.
Americans and foreigners will be indifferent towards holding dollar deposits or foreign deposits.
【单选题】Which of the following is excluded from the commercial bank deposits?
A.
Demand deposits.
B.
Time deposits.
C.
Checking accounts.
D.
Treasury bills.
【单选题】All of the following are nontransaction deposits EXCEPT
A.
savings accounts.
B.
small-denomination time deposits.
C.
checkable deposits.
D.
certificates of deposit.
【单选题】下列关于CD-ROM光盘的描述中,不正确的是( )。
A.
容量大
B.
寿命长
C.
传输速度比硬盘慢
D.
可读可写
【简答题】要重写父类的方法,使用关键词
【单选题】下列关于CD-Rom光盘的描述中,不正确的是
A.
容量大
B.
保存时间长
C.
传输速度比硬盘慢
D.
可读可写
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