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【简答题】
（）是实现矿井安全生产和矿井通风管理科学化的保证，它由多层机构组成，机构之间有机联系、相互作用。为了有效的开展通风管理工作，解决生产过程中不断出现的妨碍安全生产的新情况、新问题，必须有一个畅通、高效的管理信息传输渠道，每一矿井必须建立精干高效的通风管理体系，设置专业性的通风管理机构，配齐相关专业人员，在矿总工程师的直接领导下对矿井通风实施有效管理。
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【单选题】听力原文：M: Hey, wow!? Where did you get all of this stuff? W: I bought it. So, what do you think of my new entertainment centre? And the widescreen TV... M: Bought it? But where did you get the dough to ...
A.
A teacher and a student.
B.
A brother and a sister.
C.
A father and a daughter.
D.
Two classmates.
【单选题】听力原文：M: Hey Linda, did you get that letter about the new options for food service next year? W: Not yet. Are there a lot of changes? M: There sure are. Instead of paying one fee to cover all meals for...
A.
All students pay the same amount per year.
B.
Students choose how many meals a week they will pay for.
C.
Students get money back for meals they don't eat.
D.
Some students get free meals.
【简答题】临时遮栏设置在可能发生人体接近带电体的巡视通道和检修设备的周围。()
【单选题】听力原文：M: Hey Linda, did you get that letter about the new options for food services next year? W: Not yet．Are there a lot of changes? M: There sure are．Instead of paying one fee for all meals for the w...
A.
All students pay the same amount per year.
B.
Students choose how many meals a week they will pay for.
C.
Students can get money back for meals that they don't eat.
D.
Some students can get free meals at the cafeteria.
【多选题】预防钩体病的主要措施是（）
A.
防鼠、灭鼠，并加强对带菌家畜的管理
B.
防蚊、灭蚊
C.
对易感人群接种单价死疫苗
D.
对易感人群接种多价死疫苗
E.
对易感人群接种多价活疫苗
【单选题】听力原文：M: Hey Jolin, did you get that email about the new options for food service next semester? W: Not yet. Are there a lot of changes? M: There sure are. Instead of paying one fee to cover all meals ...
A.
It is cheaper.
B.
It is dearer.
C.
It is more flexible.
D.
It is simpler.
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