《安全生产法》关于从业人员的安全义务主要有四项:既遵章守规,服从管理;佩戴和使用劳动防护用品;接受培训,掌握安全生产技能;发现事故隐患及时报告。
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用现括号内单词的正确形式填空。 What's Mike's sister like? I've no idea. I ______never______ (meet) her.
用现括号内单词的正确形式填空。 Are you hungry? Yes. I __________ (not/eat) much today.
用现括号内单词的正确形式填空。 Can you play chess? Yes, but I_____________(not/play) it for ages.
用现括号内单词的正确形式填空。 Who's that woman by the door? I don't know. I ________(not/ see) her before.