单选题：用户安全用电事故报告规定的内容不包括（　）等。

题目内容：
用户安全用电事故报告规定的内容不包括（　）等。 A．人身触电重伤
B．专线掉闸
C．停电期间向电力系统倒送电
D．电气火灾

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答案解析：

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