在大部分语言中，我们可以使用三元运算符？：来设置新变量的值。

In most languages, we can use the tertiary operator? : to set the value of the new variable.

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所有对应于测试集的分数需要连续写入提交物中，也就是说，没有分隔符或者新行在条目分数之间。

All scores that correspond to the test set should be written to the submission file consecutively, i.e. with no separator or newline between item scores.

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另外，DB 2可以利用新的查询和联结操作符以及新的索引处理技术，为涉及XML文档的查询提供更好的运行时性能。

In addition, DB2 can leverage new query and join operators, as well as new index processing techniques, to provide strong runtime performance for queries involving XML documents.

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