与矽肺发病关系密切的因素是A.游离二氧化硅的类型B.氧化硅的类型C.粉尘浓度与分散度D.防护措施E.性别与年龄

作者: rantiku 人气: - 评论: 0
问题 与矽肺发病关系密切的因素是
选项 A.游离二氧化硅的类型 B.氧化硅的类型 C.粉尘浓度与分散度 D.防护措施 E.性别与年龄
答案 ABCD
解析

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