戏剧和其它的文学体裁不同，它具有双重性的特征。
Different from other literary genres, drama is characterized by its duality.
答：“牵手”南瓜汁具有保养饮料和常规饮料相结合的双重性饮料。
Answer: Qianshou pumpkin juice has double functions of health-care beverage and ordinary beverage.
这一结论的理论内涵具有双重性。
The theoretical connotation for such a conclusion possesses a double character.
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