【单选题】
第1707题:从事使用高毒物品作业的用人单位应当至少每___进行一次职业中毒危害控制效果评价。
A. 半年
B. 年
C. 两年
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答案
A
解析
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第1708题:向用人单位提供可能产生职业病危害的设备的,应当提供中文说明书,并在设备的醒目位置___。
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C. 设置安全注意事项
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第1710题:乙烯装置所用的原料、中间产品和产品大多是易燃易爆的气体或液体,如果安全措施不当会有爆炸的危 险。乙烯装置中发生的化学爆炸的种类不包括___爆炸。
A. 混合气体
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第1713题:关于重大事故的处理原则,下列表述错误的是___。
A. 不跑、冒、滴、漏,不超温、起压、窜压
B. 可以就地排放油和气体,防止发生着火爆炸等恶性事故
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第1721题:使用单位应当于压力容器定期检验有效期满前___,向特种设备检验机构提出定期检验的要求,特种设备应按要求,及时进行定期检验。
A. 1个月
B. 6个月
C. 一年
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第1722题:燃烧的充分条件是___。
A. 一定浓度的可燃物,一定比例的助燃剂,一定能量的点火源,以及可燃物、助燃物、点火源三者要相互作用
B. 一定浓度的可燃物,一定比例的助燃剂,一定能量的点火源
C. 一定浓度的可燃物,一定比例的助燃剂,点火源,以及可燃物、、助燃物、三者要相互作用
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特种劳动防护用品安全标志管理工作由国家安全生产监督管理总局指定的特种劳动防护用品安全标志管理机构实施受指定的特种劳动防护用品安全标志管理机构对其核发的安全标志负责
A. 对
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21. —The 2010 World Expo which will last 184 days will be held in Shanghai on May 1st.
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25. — David, look at the man in white over there.Can you tell me _______ ?
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( ) 26.With help from a Mr. H, you can__________.
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( ) 28. You can get your Mr. H for___________.
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( ) 29. When was canned food invented?
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A. A
B. B
C. C
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( ) 30. After the trip to the Arctic, Clarence Birdseye invented ____________.
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( ) 31. Changes in weather _____________ in Willis Carrier's company.
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( ) 32. According to the passage, which of the following may lead to inventions?
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A. A
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( ) 33. What is the writer's main purpose(目的)in writing this passage?
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C.To tell the readers what present he got from his father.
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A. A
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( ) 34. Why did the father not ask his son not to do this and do that?
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D.Because he didn't want to be much too strict with his son.
A. A
B. B
C. C
D. D
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( ) 35. What would someone learn from this passage?
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A. A
B. B
C. C
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( ) 36. What may be the proper Chinese for the underlined part in the passage?
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A. A
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( ) 37. The Chinese Yellow Sea Wetlands are in the _______ of China.
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( ) 38. Usually the weather in the wetlands is _______.
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( ) 39. The World Wetlands Day is on _______.
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( ) 40. We must protect wetlands because _______.
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A. A
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) 1. —Is it far from here to the bank?
—Not very, only________.
A. 20 minute’s walk B. 20 minutes walk
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A. A
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