问题
选择题
California police discovered five people died in _________ they say appeared to be a murder.
A．that
B．what
C．where
D．which
答案
答案：B
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California police discovered five people died in _________ they say appeared to be a murder.
A．that
B．what
C．where
D．which
答案：B
O2(g);△H="+765.2" kJ·mol-1，请在答题卡的坐标图中，画出上述反应过程中体系能量变化示意图，并进行必要标注。