例:设一等差数列 ( Arithmetic Sequence ) 的第五项 ( Fifth Term ) 为 9,第十项 ( Tenth Term ) 为 19,求第一项的值,公差,第五十项的值及由第一至第五十项的总和。
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Tito Boeri of Bocconi University reckons that a fifth of Italy’s workforce are on (short) fixed-term contracts.
博科尼大学的Tito Boeri推测五分之一的意大利劳动力是短期定期合同工。
Tito Boeri of Bocconi University reckons that a fifth of Italy's workforce are on (short) fixed-term contracts.
博科尼大学的Tito Boeri推测五分之一的意大利劳动力是短期定期合同工。
Tito Boeri of BocconiUniversity reckons that a fifth of Italy's workforce are on (short) fixed-term contracts.
博科尼大学的Tito Boeri推测五分之一的意大利劳动力是短期定期合同工。
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