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Batteries still drag 'green vehicle' effort

By Gong Zhengzheng | 皇冠体育app Daily | Updated: 2010-11-15 07:54

Batteries still drag 'green vehicle' effort

Electric vehicles are most commonly seen in public transport today. A recent study by JD Power envisions worldwide sales of 5.2 million hybrid and battery electric vehicles in 2020. Ren Weihong / for 皇冠体育app Daily

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