题目

某同学做物质在氧气中燃烧的实验方法如下图所示，其中不合理的是(    )A．木炭在氧气中燃烧B．铁丝在氧气中燃烧C．硫在氧气中燃烧D．蜡烛在氧气中燃烧 答案：B解析:略____ , the boys were shouting and singing． 　 A. Happy and excited　 　　　　　 B. Happily and excited 　 C. Happily and excitedly 　 D. Happy and excitedly