下列关于化学反应与能量变化的叙述中，正确的是
侯英超 |
发布日期：2010-06-08 09:34:03
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下列关于化学反应与能量变化的叙述中，正确的是 A．人类利用的能量都是通过化学反应获得的 B．在化学反应中只有燃烧反应才能放出热量 C．化学反应过程中都会发生放热现象 D．化学反应伴随有能量变化 |
