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【单选题】
把几个不同性质类的对象组合成一个更的复合对象,叫着A.
分类
B.
聚集
C.
概括
D.
联合
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【简答题】The resulting ________ atmosphere hanged over the foreign policies of the presidencies of Harry Truman all theway through that of Ronald Reagan.
【单选题】在关系模型中,一个候选码( )。
A.
可以由多个任意属性组成
B.
最多由一个属性组成
C.
可有一个或多个其值能够唯一表示该关系模式中任何元组的属性组成
D.
以上都不是
【简答题】Teamwork is just as important in science as it is on the playing field or in the gym. Scientific investigations (调查) are almost always carried out by teams of people working together. Ideas are shared...
【简答题】表达式 (int)((double)9/2)-9%2的值是()。
【单选题】According to the writer, teamwork is more effective in the field of sport because the players .
A.
know what they want to achieve
B.
are more competitive by nature
C.
have more individual talent
D.
can be driven by national pride
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