【单选题】在关系模型中,若某个关系存在多个候选码,则选定其中一个候选码为 ( ) 。
【单选题】表达式(int)((double)9/2)-9%2的值是()。
【单选题】远安鹿苑茶鲜叶采摘要求细嫩、新鲜、匀齐、纯净,习惯上是上午采摘,下午短叶,短叶的标准是
【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...
【单选题】表达式(int)((double)7/2)-9%2的值是( )。
【简答题】表达式 (int)((double)9/2)-9%2的值是()。
【判断题】The foreign policies of a country have a direct effect on a firm’s international marketing success.
【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