The cost for people in the Pads region on weddings last year was probably _______.
A. 50,000 francs
B. 57,000 francs
C. 60,000 francs
D. 63,000 francs
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Which one is in the central Italy
A. Volscians.
B. Samnites.
C. Umbrians.
D. Bruttians.
在关系模型中，一个关键字
A. 可由多个任意属性组成
B. 至多由一个属性组成
C. 可由一个或多个其值能唯一标识该关系模式或任何元组的属性组成
D. 以上都不是
Which one is not true about the magistrate
A. It was difficult for the chief magistrate to become a dictator.
B. Any Roman had the chance to become the magistrate.
C. The plebs couldn't hold the post of magistrate.
D. Magistrate's power was limite
在表达式x-y中，"-"是作为非成员函数重载的运算符。若使用显式的函数调用代替直接使用运算符"-"，这个表达式还可以表示为
A. operator-(y)
B. operatot-(y,x)
C. operator-(x)
D. operator-(x,y)
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