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【单选题】
2019年11月15日，住房和城乡建设部发布了《生活垃圾分类标志》，下列不属于该标志规定的生活垃圾类别的是A.
厨余垃圾
B.
有害垃圾
C.
可回收物
D.
其他垃圾
E.
建筑垃圾
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皮皮学刷刷变学霸
举一反三
【单选题】The amount of value a firm creates is measured by the(). 一个公司创造的价值是由( )指标来衡量的。
A.
economies of scale they are able to achieve.能够实现规模经济。
B.
difference between its costs of production and the value that consumers perceive in its products.其生产成本与消费者对其产品的感知价值之间的差异。
C.
profitability the firm achieves.公司实现盈利。
D.
difference between its costs of production and the price that it charges for its products.生产成本与产品价格之间的差额。
【判断题】The amount of value a firm creates is measured by the difference between its costs of production and the price that it charges for its products.
A.
正确
B.
错误
【单选题】下列关于血液基本功能的叙述,错误的是( )。
A.
血液具有运输功能
B.
血液具有防御功能
C.
血液具有免疫功能
D.
血液具有调节内环境稳态的功能
E.
血液不具备缓冲体温的作用
【单选题】下列关于血液基本功能的叙述,错误的是:
A.
血液具有运输功能
B.
血液具有调节内环境稳态的功能
C.
血液具有防御功能
D.
血液具有免疫功能
E.
血液不具备缓冲体温的作用
【单选题】The amount of value a firm creates is measured by the:
A.
economies of scale they are able to achieve.
B.
difference between its costs of production and the value that consumers perceive in its products.
C.
profitability the firm achieves.
D.
difference between its costs of production and the price that it charges for its products.
【简答题】混凝土若已发生离析,必须在浇筑前按保持___________不变原则进行二次搅拌。
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