已知①能量越低的物质就越稳定，②白磷转化成红磷是放热反应．据此，下列判断或说法中正确的是（ ）A
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B \u767d\u78f7\u8f6c\u5316\u4e3a\u7ea2\u78f7\u662f\u653e\u70ed\u53cd\u5e94\uff0c\u8bf4\u660e\u767d\u78f7\u7684\u80fd\u91cf\u9ad8\u4e8e\u7ea2\u78f7\u7684\uff0c\u6240\u4ee5\u7ea2\u78f7\u6bd4\u767d\u78f7\u7a33\u5b9a\u3002\u540c\u7d20\u5f02\u5f62\u4f53\u4e4b\u95f4\u7684\u8f6c\u5316\u5c5e\u4e8e\u5316\u5b66\u53d8\u5316\u3002\u65e2\u7136\u767d\u78f7\u7684\u80fd\u91cf\u9ad8\u4e8e\u7ea2\u78f7\u7684\uff0c\u6240\u4ee5\u76f8\u540c\u8d28\u91cf\u7684\u7ea2\u78f7\u548c\u767d\u78f7\u5b8c\u5168\u71c3\u70e7\u653e\u51fa\u7684\u80fd\u91cf\u4e0d\u76f8\u7b49\uff0c\u767d\u78f7\u653e\u51fa\u7684\u80fd\u91cf\u8981\u9ad8\u4e8e\u7ea2\u78f7\u653e\u51fa\u7684\u80fd\u91cf\u3002\u7b54\u6848\u662fB\u3002
A．白磷转化成红磷是放热反应，故红磷的能量低，红磷稳定，故A正确；B．红磷的能量低，红磷稳定，故B错误；
C．红磷和白磷的结构不同，白磷是正四面体结构，红磷是链状的结构，故C正确；
D．白磷的着火点低，只有40摄氏度，而红磷的较高，不易自燃，故D错误．
故选AC．
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