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But e-bikes containing lithium-ion batteries are a newer challenge. "When a battery fails, it doesn't necessarily ignite, it will often produce some off-gases," says Stephen Welch, senior lecturer at the University of Edinburgh's Fire Research Centre. "Those off-gases are toxic and flammable. If they accumulate, you can have an explosion risk."。关于这个话题，搜狗输入法下载提供了深入分析
第三条 增值税法第三条所称单位，包括企业、行政机关、事业单位、军事单位、社会组织及其他单位。
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