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【简答题】
I am an adult. I’m not a kid. I’m a grown-up. I need some money. I have no food. I am hungry. I am not thirsty, because water is everywhere. But water has no taste. I want to drink a soda. I want to drink milk. I want to drink coffee. I want to work. Nobody will hire（雇佣 ）me. Nobody is hiring anybody. Companies are firing（解雇） people. Everyone is looking for a job. I cannot pay my rent（付房租）. I will have to live in my car. I don’t want to live in my car. My car has no bed. Everyone should live in a house or a flat. Many people don’t have a car. They live on the street. A street has no bed. Nobody should live on the street. I don’t know what to do. I don’t know where to go. Maybe I will go to church（教堂）. Maybe I will find help there. 小题1:I need some money because I _______. A．need water to drink B．need food to eat C．don’t need water to drink D．don’t need food to eat 小题2:I don’t want to buy _______to drink. A．soda B．milk C．water D．coffee 小题3:I want to live __________. A．in a house B．in my car C．on the street D．in the church 小题4:I am looking for ________ A．water B．a job C．a house D．the church 小题5:Which is wrong? A．Companies are firing people. B．I can pay my rent . C．I will go to church for help. D．Nobody should live on the street.
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【多选题】下列表述中，符合对于建设工程保修义务的承担和维修的经济责任承担的处理原则的是( )
A.
因设计问题造成的质量缺陷，先由施工单位负责维修，其经济责任按有关规定由施工单位直接向设计单位索赔
B.
因建筑材料、构配件和设备质量不合格引起的质量缺陷，由施工单位负责维修并承担经济责任
C.
因建设单位(含监理单位)错误管理而造成的质量缺陷，先由施工单位负责维修，其经济责任由建设单位承担，如属监理单位责任，则由建设单位向监理单位索赔
D.
因使用单位使用不当造成的损坏问题，先由施工单位负责维修，其经济责任由使用单位自行承担
E.
因不可抗力造成的损坏问题，先由施工单位负责维修，其经济责任由建设参与各方再根据国家具体政策分担
【简答题】2 在有振源和无色散介质的条件下传播机械波。(1)若波源频率增加,问波动的波长、频率和波速哪一个将发生变化?如何变?(2)波源频率不变但介质改变,波长、频率和波速又如何变?(3)在声源频率一定的条件下,声波先经过温度较高的空气,后又穿入温度较低的空气,问声波的频率、波长和波速如何变化?
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