This is the standard textbook on the subject.
这是这一科的权威性课本。
It is now a standard textbook model in the economics literature.
购买力平价已经成为一个标准的经济学教科书模型。
In 2005 the compulsory curriculum standard textbook based on full-time compulsory education in Russian Course Standards is officially released.
2005年依据《全日制义务教育俄语课程标准》编写的《义务教育俄语课程标准实验教科书》正式发行。
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