煤的自燃倾向性是煤的一种自然的属性,是煤层发生自燃的基本条件。煤的自燃倾向性分为()三类。A:容易自燃、自燃和不易自燃B:容易自燃、不易自燃和不自燃C...

作者: rantiku 人气: - 评论: 0
问题 煤的自燃倾向性是煤的一种自然的属性,是煤层发生自燃的基本条件。煤的自燃倾向性分为()三类。
选项 A:容易自燃、自燃和不易自燃 B:容易自燃、不易自燃和不自燃 C:自燃、不易自燃和不自燃 D:易自燃、不易自燃和不自燃
答案 A
解析

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