* 新增当日价格，并返回该价格的跨度
過去一年，北京將人工智慧與機器人技術納入經濟戰略核心，在先進晶片製造、自動化及生成式AI領域投入巨資，力圖在科技領域超越美國。
。WPS官方版本下载是该领域的重要参考
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