单项选择题

A企业主要进行地下矿山中铁矿的开采在进行开采作业时,该企业采用矿井电梯运送作业人员,为保证矿井电梯运行安全,该铁矿企业提出了相应的安全技术措施,并要求电梯的生产、安装及使用完全按照《特种设备安全监察条例》有关要求进行。在矿用电梯投入使用前,生产经营单位按照有关规定进行了备案。
A企业的安全生产管理机构按照规定定期对作业 现场进行安全生产检查和隐患排查,定期组织对设施、设备进行安全检测和检验。在一次安全检查中发现如下情况:
(1)安全设施未执行“三同时”制度。
(2)矿井巷道通风系统不合格。
上述不合格情况说明该矿山企业存在重大安全隐患,因此,A企业及时进行了隐患报告,并迅速采取 措施进行处理。
重大事故隐患应由生产经营单位(  )组织制定并实施事故隐患治理方案。

A.主要负责人
B.安全管理人员
C.专职安全员
D.车间负责人
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听力原文:M: Good morning, Ms. Smith. Welcome to today's show.W: Thank you.M: Today we're going to talk about the living of foreign students in our country. You know, for many international students, coming to the United States and living here and studying can be a quite frightening experience, especially when finding housing. Can you give them some advice?W: SurE.Fortunately, there are a variety of options that students can look to. They can choose to live on campus or off campus.M: Then can you say something about on-campus living?W: Well, I think first of all for first-time students, coming and (22)living on campus in dormitories can provide a certain level of security because of its closeness to campus facilities since commuting without a car can be quite an experience, especially when you have to commute long distances. Often in dormitories, meals might be provided, and this can allow students to devote time to their academies, rather than housekeeping.M: That sounds quite gooD.Is there anything students should pay attention to when living on campus?W: Yes, (23)students should be aware that they'll be required to abide by certain regulations dealing with student eonduct as part of the contract and living on campus.M: Then what about off-campus living?W: (24)Like living in dormitories, uh, living off campus in an apartment requires little or no maintenance specifically because usually it is handled by someone elsE.Also, when you live off campus, there might be a certain amount of flexibility in choosing roommates that you might not have when living on campus. (25)But you should be aware that tenants may be responsible for furnishing their own apartments.M: Well, thank you, Ms. Smith, for the information you have provided for us.W:My pleasurE.(23)A.Meals are provided free of charge on campus.B.Students are more secure on campus.C.Students are free to choose their roommates.D.Students have more chances to make friends.
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