单选题:下列常见安全事故原因说法不正确的有( )

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题目内容:
下列常见安全事故原因说法不正确的有( ) A.个人的不安全因素能力上的不安全因素,包括知识技能、应变能力、资格等不能适应工作和作业岗位要求的影响因素
B.人的不安全行为在施工现场的类型:在起吊物下作业、停留;在机器运转时进行检查、维修、保养、人的资格等工作;
C.物的不安全状态主要包括:防护等装置缺乏或有缺陷;设备、设施、工具、附件有缺陷;个人防护用品缺少或有缺陷;施工生产场地环境不良
D.管理上的不安全因素也称管理上的缺陷,主要包括对物的管理失误和对人的管理失误

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